Home / 153,924,780.82-212,413,572.32-83,359,819.16

Finding the Fourth Proportional to 153,924,780.82, 212,413,572.32 and 83,359,819.16

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Solution

The fourth proportional to 153,924,780.82, 212,413,572.32 and 83,359,819.16 is: 115,035,128.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,924,780.82 : 212,413,572.32 = 83,359,819.16 : x
  2. Step 2: Convert to fraction form
    153,924,780.82/212,413,572.32 = 83,359,819.16/x
  3. Step 3: Cross multiply
    153,924,780.82x = 212,413,572.32 × 83,359,819.16
  4. Step 4: Simplify right side
    153,924,780.82x = 17,706,756,975,724,780
  5. Step 5: Solve for x
    x = 17,706,756,975,724,780/153,924,780.82
  6. Step 6: Final answer
    x = 115,035,128.73

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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.