Home / 126,128,023.68-189,133,248.64-65,527,478.40

Finding the Fourth Proportional to 126,128,023.68, 189,133,248.64 and 65,527,478.40

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Solution

The fourth proportional to 126,128,023.68, 189,133,248.64 and 65,527,478.40 is: 98,260,675.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,128,023.68 : 189,133,248.64 = 65,527,478.40 : x
  2. Step 2: Convert to fraction form
    126,128,023.68/189,133,248.64 = 65,527,478.40/x
  3. Step 3: Cross multiply
    126,128,023.68x = 189,133,248.64 × 65,527,478.40
  4. Step 4: Simplify right side
    126,128,023.68x = 12,393,424,864,979,428
  5. Step 5: Solve for x
    x = 12,393,424,864,979,428/126,128,023.68
  6. Step 6: Final answer
    x = 98,260,675.97

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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.