Home / 5,412,492,123.90-8,118,738,185.85-2,657,501,979.90

Finding the Fourth Proportional to 5,412,492,123.90, 8,118,738,185.85 and 2,657,501,979.90

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Solution

The fourth proportional to 5,412,492,123.90, 8,118,738,185.85 and 2,657,501,979.90 is: 3,986,252,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412,492,123.90 : 8,118,738,185.85 = 2,657,501,979.90 : x
  2. Step 2: Convert to fraction form
    5,412,492,123.90/8,118,738,185.85 = 2,657,501,979.90/x
  3. Step 3: Cross multiply
    5,412,492,123.90x = 8,118,738,185.85 × 2,657,501,979.90
  4. Step 4: Simplify right side
    5,412,492,123.90x = 21,575,562,803,186,110,464
  5. Step 5: Solve for x
    x = 21,575,562,803,186,110,464/5,412,492,123.90
  6. Step 6: Final answer
    x = 3,986,252,969.85

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Double scale
Find fourth proportional to 5,412,492,124.90, 8,118,738,187.35 and 2,657,501,980.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.