Home / 139,913,071.02-193,078,959.17-77,191,812.36

Finding the Fourth Proportional to 139,913,071.02, 193,078,959.17 and 77,191,812.36

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Solution

The fourth proportional to 139,913,071.02, 193,078,959.17 and 77,191,812.36 is: 106,524,105.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,913,071.02 : 193,078,959.17 = 77,191,812.36 : x
  2. Step 2: Convert to fraction form
    139,913,071.02/193,078,959.17 = 77,191,812.36/x
  3. Step 3: Cross multiply
    139,913,071.02x = 193,078,959.17 × 77,191,812.36
  4. Step 4: Simplify right side
    139,913,071.02x = 14,904,114,786,528,782
  5. Step 5: Solve for x
    x = 14,904,114,786,528,782/139,913,071.02
  6. Step 6: Final answer
    x = 106,524,105.85

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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.