Home / 21,581,123.20-32,371,684.80-19,817,526.40

Finding the Fourth Proportional to 21,581,123.20, 32,371,684.80 and 19,817,526.40

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Solution

The fourth proportional to 21,581,123.20, 32,371,684.80 and 19,817,526.40 is: 29,726,289.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,123.20 : 32,371,684.80 = 19,817,526.40 : x
  2. Step 2: Convert to fraction form
    21,581,123.20/32,371,684.80 = 19,817,526.40/x
  3. Step 3: Cross multiply
    21,581,123.20x = 32,371,684.80 × 19,817,526.40
  4. Step 4: Simplify right side
    21,581,123.20x = 641,526,718,136,478.62
  5. Step 5: Solve for x
    x = 641,526,718,136,478.62/21,581,123.20
  6. Step 6: Final answer
    x = 29,726,289.60

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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.