Home / 115,207,386.30-172,811,079.45-76,465,337.40

Finding the Fourth Proportional to 115,207,386.30, 172,811,079.45 and 76,465,337.40

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Solution

The fourth proportional to 115,207,386.30, 172,811,079.45 and 76,465,337.40 is: 114,698,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,207,386.30 : 172,811,079.45 = 76,465,337.40 : x
  2. Step 2: Convert to fraction form
    115,207,386.30/172,811,079.45 = 76,465,337.40/x
  3. Step 3: Cross multiply
    115,207,386.30x = 172,811,079.45 × 76,465,337.40
  4. Step 4: Simplify right side
    115,207,386.30x = 13,214,057,496,602,456
  5. Step 5: Solve for x
    x = 13,214,057,496,602,456/115,207,386.30
  6. Step 6: Final answer
    x = 114,698,006.10

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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.