Home / 145,222,750,732.76-217,770,861,507.98-77,138,913,795.06

Finding the Fourth Proportional to 145,222,750,732.76, 217,770,861,507.98 and 77,138,913,795.06

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Solution

The fourth proportional to 145,222,750,732.76, 217,770,861,507.98 and 77,138,913,795.06 is: 115,674,766,027.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,222,750,732.76 : 217,770,861,507.98 = 77,138,913,795.06 : x
  2. Step 2: Convert to fraction form
    145,222,750,732.76/217,770,861,507.98 = 77,138,913,795.06/x
  3. Step 3: Cross multiply
    145,222,750,732.76x = 217,770,861,507.98 × 77,138,913,795.06
  4. Step 4: Simplify right side
    145,222,750,732.76x = 16,798,607,712,938,929,160,192
  5. Step 5: Solve for x
    x = 16,798,607,712,938,929,160,192/145,222,750,732.76
  6. Step 6: Final answer
    x = 115,674,766,027.89

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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.