Home / 145,156,749.90-217,735,124.85-130,376,129.10

Finding the Fourth Proportional to 145,156,749.90, 217,735,124.85 and 130,376,129.10

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Solution

The fourth proportional to 145,156,749.90, 217,735,124.85 and 130,376,129.10 is: 195,564,193.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156,749.90 : 217,735,124.85 = 130,376,129.10 : x
  2. Step 2: Convert to fraction form
    145,156,749.90/217,735,124.85 = 130,376,129.10/x
  3. Step 3: Cross multiply
    145,156,749.90x = 217,735,124.85 × 130,376,129.10
  4. Step 4: Simplify right side
    145,156,749.90x = 28,387,462,747,048,216
  5. Step 5: Solve for x
    x = 28,387,462,747,048,216/145,156,749.90
  6. Step 6: Final answer
    x = 195,564,193.65

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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.