Home / 69,038,117.64-103,554,654.12-20,514,710.25

Finding the Fourth Proportional to 69,038,117.64, 103,554,654.12 and 20,514,710.25

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Solution

The fourth proportional to 69,038,117.64, 103,554,654.12 and 20,514,710.25 is: 30,771,315.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,038,117.64 : 103,554,654.12 = 20,514,710.25 : x
  2. Step 2: Convert to fraction form
    69,038,117.64/103,554,654.12 = 20,514,710.25/x
  3. Step 3: Cross multiply
    69,038,117.64x = 103,554,654.12 × 20,514,710.25
  4. Step 4: Simplify right side
    69,038,117.64x = 2,124,393,724,602,068
  5. Step 5: Solve for x
    x = 2,124,393,724,602,068/69,038,117.64
  6. Step 6: Final answer
    x = 30,771,315.86

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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.