Home / 40,152,990.30-55,411,458.72-21,818,275.80

Finding the Fourth Proportional to 40,152,990.30, 55,411,458.72 and 21,818,275.80

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Solution

The fourth proportional to 40,152,990.30, 55,411,458.72 and 21,818,275.80 is: 30,109,401.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,152,990.30 : 55,411,458.72 = 21,818,275.80 : x
  2. Step 2: Convert to fraction form
    40,152,990.30/55,411,458.72 = 21,818,275.80/x
  3. Step 3: Cross multiply
    40,152,990.30x = 55,411,458.72 × 21,818,275.80
  4. Step 4: Simplify right side
    40,152,990.30x = 1,208,982,488,833,275
  5. Step 5: Solve for x
    x = 1,208,982,488,833,275/40,152,990.30
  6. Step 6: Final answer
    x = 30,109,401.06

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1.5x scale

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.