Home / 139,929,600.17-193,108,688.60-77,209,766.79

Finding the Fourth Proportional to 139,929,600.17, 193,108,688.60 and 77,209,766.79

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Solution

The fourth proportional to 139,929,600.17, 193,108,688.60 and 77,209,766.79 is: 106,552,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,929,600.17 : 193,108,688.60 = 77,209,766.79 : x
  2. Step 2: Convert to fraction form
    139,929,600.17/193,108,688.60 = 77,209,766.79/x
  3. Step 3: Cross multiply
    139,929,600.17x = 193,108,688.60 × 77,209,766.79
  4. Step 4: Simplify right side
    139,929,600.17x = 14,909,876,811,542,684
  5. Step 5: Solve for x
    x = 14,909,876,811,542,684/139,929,600.17
  6. Step 6: Final answer
    x = 106,552,700.74

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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.