Home / 147,745,120.60-221,617,680.90-86,523,117.40

Finding the Fourth Proportional to 147,745,120.60, 221,617,680.90 and 86,523,117.40

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Solution

The fourth proportional to 147,745,120.60, 221,617,680.90 and 86,523,117.40 is: 129,784,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,745,120.60 : 221,617,680.90 = 86,523,117.40 : x
  2. Step 2: Convert to fraction form
    147,745,120.60/221,617,680.90 = 86,523,117.40/x
  3. Step 3: Cross multiply
    147,745,120.60x = 221,617,680.90 × 86,523,117.40
  4. Step 4: Simplify right side
    147,745,120.60x = 19,175,052,622,426,440
  5. Step 5: Solve for x
    x = 19,175,052,622,426,440/147,745,120.60
  6. Step 6: Final answer
    x = 129,784,676.10

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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.