Home / 1,122,890,885.82-1,549,485,431.10-621,088,872.03

Finding the Fourth Proportional to 1,122,890,885.82, 1,549,485,431.10 and 621,088,872.03

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Solution

The fourth proportional to 1,122,890,885.82, 1,549,485,431.10 and 621,088,872.03 is: 857,045,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,890,885.82 : 1,549,485,431.10 = 621,088,872.03 : x
  2. Step 2: Convert to fraction form
    1,122,890,885.82/1,549,485,431.10 = 621,088,872.03/x
  3. Step 3: Cross multiply
    1,122,890,885.82x = 1,549,485,431.10 × 621,088,872.03
  4. Step 4: Simplify right side
    1,122,890,885.82x = 962,368,158,628,817,152
  5. Step 5: Solve for x
    x = 962,368,158,628,817,152/1,122,890,885.82
  6. Step 6: Final answer
    x = 857,045,124.14

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Double scale
Find fourth proportional to 1,122,890,886.82, 1,549,485,432.48 and 621,088,873.03
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.