Home / 20,838,159.76-28,747,500.49-12,573,612.51

Finding the Fourth Proportional to 20,838,159.76, 28,747,500.49 and 12,573,612.51

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Solution

The fourth proportional to 20,838,159.76, 28,747,500.49 and 12,573,612.51 is: 17,346,058.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838,159.76 : 28,747,500.49 = 12,573,612.51 : x
  2. Step 2: Convert to fraction form
    20,838,159.76/28,747,500.49 = 12,573,612.51/x
  3. Step 3: Cross multiply
    20,838,159.76x = 28,747,500.49 × 12,573,612.51
  4. Step 4: Simplify right side
    20,838,159.76x = 361,459,931,792,295.12
  5. Step 5: Solve for x
    x = 361,459,931,792,295.12/20,838,159.76
  6. Step 6: Final answer
    x = 17,346,058.19

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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.