Home / 103,038,186.82-142,196,107.89-56,630,085.70

Finding the Fourth Proportional to 103,038,186.82, 142,196,107.89 and 56,630,085.70

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Solution

The fourth proportional to 103,038,186.82, 142,196,107.89 and 56,630,085.70 is: 78,151,392.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,038,186.82 : 142,196,107.89 = 56,630,085.70 : x
  2. Step 2: Convert to fraction form
    103,038,186.82/142,196,107.89 = 56,630,085.70/x
  3. Step 3: Cross multiply
    103,038,186.82x = 142,196,107.89 × 56,630,085.70
  4. Step 4: Simplify right side
    103,038,186.82x = 8,052,577,776,017,146
  5. Step 5: Solve for x
    x = 8,052,577,776,017,146/103,038,186.82
  6. Step 6: Final answer
    x = 78,151,392.45

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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.