Home / 21,205,009.40-31,807,514.10-14,486,545.40

Finding the Fourth Proportional to 21,205,009.40, 31,807,514.10 and 14,486,545.40

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Solution

The fourth proportional to 21,205,009.40, 31,807,514.10 and 14,486,545.40 is: 21,729,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205,009.40 : 31,807,514.10 = 14,486,545.40 : x
  2. Step 2: Convert to fraction form
    21,205,009.40/31,807,514.10 = 14,486,545.40/x
  3. Step 3: Cross multiply
    21,205,009.40x = 31,807,514.10 × 14,486,545.40
  4. Step 4: Simplify right side
    21,205,009.40x = 460,780,997,070,790.19
  5. Step 5: Solve for x
    x = 460,780,997,070,790.19/21,205,009.40
  6. Step 6: Final answer
    x = 21,729,818.10

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1.5x scale

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.