Home / 20,671,070.80-31,006,606.20-13,490,712.40

Finding the Fourth Proportional to 20,671,070.80, 31,006,606.20 and 13,490,712.40

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Solution

The fourth proportional to 20,671,070.80, 31,006,606.20 and 13,490,712.40 is: 20,236,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671,070.80 : 31,006,606.20 = 13,490,712.40 : x
  2. Step 2: Convert to fraction form
    20,671,070.80/31,006,606.20 = 13,490,712.40/x
  3. Step 3: Cross multiply
    20,671,070.80x = 31,006,606.20 × 13,490,712.40
  4. Step 4: Simplify right side
    20,671,070.80x = 418,301,206,744,256.88
  5. Step 5: Solve for x
    x = 418,301,206,744,256.88/20,671,070.80
  6. Step 6: Final answer
    x = 20,236,068.60

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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.