Home / 105,664,019.55-145,799,902.80-60,400,118.72

Finding the Fourth Proportional to 105,664,019.55, 145,799,902.80 and 60,400,118.72

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Solution

The fourth proportional to 105,664,019.55, 145,799,902.80 and 60,400,118.72 is: 83,342,763.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,664,019.55 : 145,799,902.80 = 60,400,118.72 : x
  2. Step 2: Convert to fraction form
    105,664,019.55/145,799,902.80 = 60,400,118.72/x
  3. Step 3: Cross multiply
    105,664,019.55x = 145,799,902.80 × 60,400,118.72
  4. Step 4: Simplify right side
    105,664,019.55x = 8,806,331,438,484,461
  5. Step 5: Solve for x
    x = 8,806,331,438,484,461/105,664,019.55
  6. Step 6: Final answer
    x = 83,342,763.94

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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.