Home / 136,592,697.72-188,495,707.86-74,712,495

Finding the Fourth Proportional to 136,592,697.72, 188,495,707.86 and 74,712,495

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Solution

The fourth proportional to 136,592,697.72, 188,495,707.86 and 74,712,495 is: 103,102,031.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,592,697.72 : 188,495,707.86 = 74,712,495 : x
  2. Step 2: Convert to fraction form
    136,592,697.72/188,495,707.86 = 74,712,495/x
  3. Step 3: Cross multiply
    136,592,697.72x = 188,495,707.86 × 74,712,495
  4. Step 4: Simplify right side
    136,592,697.72x = 14,082,984,631,011,712
  5. Step 5: Solve for x
    x = 14,082,984,631,011,712/136,592,697.72
  6. Step 6: Final answer
    x = 103,102,031.56

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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.