Home / 147,745,121.10-221,617,681.65-86,523,117.90

Finding the Fourth Proportional to 147,745,121.10, 221,617,681.65 and 86,523,117.90

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Solution

The fourth proportional to 147,745,121.10, 221,617,681.65 and 86,523,117.90 is: 129,784,676.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,745,121.10 : 221,617,681.65 = 86,523,117.90 : x
  2. Step 2: Convert to fraction form
    147,745,121.10/221,617,681.65 = 86,523,117.90/x
  3. Step 3: Cross multiply
    147,745,121.10x = 221,617,681.65 × 86,523,117.90
  4. Step 4: Simplify right side
    147,745,121.10x = 19,175,052,798,127,620
  5. Step 5: Solve for x
    x = 19,175,052,798,127,620/147,745,121.10
  6. Step 6: Final answer
    x = 129,784,676.85

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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.