Home / 147,745,007.90-221,617,511.85-86,523,004.70

Finding the Fourth Proportional to 147,745,007.90, 221,617,511.85 and 86,523,004.70

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Solution

The fourth proportional to 147,745,007.90, 221,617,511.85 and 86,523,004.70 is: 129,784,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,745,007.90 : 221,617,511.85 = 86,523,004.70 : x
  2. Step 2: Convert to fraction form
    147,745,007.90/221,617,511.85 = 86,523,004.70/x
  3. Step 3: Cross multiply
    147,745,007.90x = 221,617,511.85 × 86,523,004.70
  4. Step 4: Simplify right side
    147,745,007.90x = 19,175,013,019,399,856
  5. Step 5: Solve for x
    x = 19,175,013,019,399,856/147,745,007.90
  6. Step 6: Final answer
    x = 129,784,507.05

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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.