Home / 145,013,547.70-217,520,321.55-83,707,563.70

Finding the Fourth Proportional to 145,013,547.70, 217,520,321.55 and 83,707,563.70

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Solution

The fourth proportional to 145,013,547.70, 217,520,321.55 and 83,707,563.70 is: 125,561,345.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,013,547.70 : 217,520,321.55 = 83,707,563.70 : x
  2. Step 2: Convert to fraction form
    145,013,547.70/217,520,321.55 = 83,707,563.70/x
  3. Step 3: Cross multiply
    145,013,547.70x = 217,520,321.55 × 83,707,563.70
  4. Step 4: Simplify right side
    145,013,547.70x = 18,208,096,172,191,108
  5. Step 5: Solve for x
    x = 18,208,096,172,191,108/145,013,547.70
  6. Step 6: Final answer
    x = 125,561,345.55

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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.