Home / 20,949,907.61-28,924,155.47-14,345,547.91

Finding the Fourth Proportional to 20,949,907.61, 28,924,155.47 and 14,345,547.91

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Solution

The fourth proportional to 20,949,907.61, 28,924,155.47 and 14,345,547.91 is: 19,805,951.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,949,907.61 : 28,924,155.47 = 14,345,547.91 : x
  2. Step 2: Convert to fraction form
    20,949,907.61/28,924,155.47 = 14,345,547.91/x
  3. Step 3: Cross multiply
    20,949,907.61x = 28,924,155.47 × 14,345,547.91
  4. Step 4: Simplify right side
    20,949,907.61x = 414,932,857,834,825
  5. Step 5: Solve for x
    x = 414,932,857,834,825/20,949,907.61
  6. Step 6: Final answer
    x = 19,805,951.68

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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.