Home / 136,019,921.29-187,707,541.86-77,282,663.56

Finding the Fourth Proportional to 136,019,921.29, 187,707,541.86 and 77,282,663.56

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Solution

The fourth proportional to 136,019,921.29, 187,707,541.86 and 77,282,663.56 is: 106,650,104.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,019,921.29 : 187,707,541.86 = 77,282,663.56 : x
  2. Step 2: Convert to fraction form
    136,019,921.29/187,707,541.86 = 77,282,663.56/x
  3. Step 3: Cross multiply
    136,019,921.29x = 187,707,541.86 × 77,282,663.56
  4. Step 4: Simplify right side
    136,019,921.29x = 14,506,538,804,771,730
  5. Step 5: Solve for x
    x = 14,506,538,804,771,730/136,019,921.29
  6. Step 6: Final answer
    x = 106,650,104.39

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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.