Home / 19,931,820.80-29,897,731.20-10,838,274.80

Finding the Fourth Proportional to 19,931,820.80, 29,897,731.20 and 10,838,274.80

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Solution

The fourth proportional to 19,931,820.80, 29,897,731.20 and 10,838,274.80 is: 16,257,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931,820.80 : 29,897,731.20 = 10,838,274.80 : x
  2. Step 2: Convert to fraction form
    19,931,820.80/29,897,731.20 = 10,838,274.80/x
  3. Step 3: Cross multiply
    19,931,820.80x = 29,897,731.20 × 10,838,274.80
  4. Step 4: Simplify right side
    19,931,820.80x = 324,039,826,642,133.75
  5. Step 5: Solve for x
    x = 324,039,826,642,133.75/19,931,820.80
  6. Step 6: Final answer
    x = 16,257,412.20

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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.