Home / 103,038,022.80-154,557,034.20-72,804,934.80

Finding the Fourth Proportional to 103,038,022.80, 154,557,034.20 and 72,804,934.80

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Solution

The fourth proportional to 103,038,022.80, 154,557,034.20 and 72,804,934.80 is: 109,207,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,038,022.80 : 154,557,034.20 = 72,804,934.80 : x
  2. Step 2: Convert to fraction form
    103,038,022.80/154,557,034.20 = 72,804,934.80/x
  3. Step 3: Cross multiply
    103,038,022.80x = 154,557,034.20 × 72,804,934.80
  4. Step 4: Simplify right side
    103,038,022.80x = 11,252,514,797,812,368
  5. Step 5: Solve for x
    x = 11,252,514,797,812,368/103,038,022.80
  6. Step 6: Final answer
    x = 109,207,402.20

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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.