Home / 142,565,277.28-196,828,939.58-97,988,006.20

Finding the Fourth Proportional to 142,565,277.28, 196,828,939.58 and 97,988,006.20

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Solution

The fourth proportional to 142,565,277.28, 196,828,939.58 and 97,988,006.20 is: 135,284,521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,565,277.28 : 196,828,939.58 = 97,988,006.20 : x
  2. Step 2: Convert to fraction form
    142,565,277.28/196,828,939.58 = 97,988,006.20/x
  3. Step 3: Cross multiply
    142,565,277.28x = 196,828,939.58 × 97,988,006.20
  4. Step 4: Simplify right side
    142,565,277.28x = 19,286,875,350,430,380
  5. Step 5: Solve for x
    x = 19,286,875,350,430,380/142,565,277.28
  6. Step 6: Final answer
    x = 135,284,521.72

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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.