Home / 21,342,409.20-32,013,613.80-19,578,812.40

Finding the Fourth Proportional to 21,342,409.20, 32,013,613.80 and 19,578,812.40

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Solution

The fourth proportional to 21,342,409.20, 32,013,613.80 and 19,578,812.40 is: 29,368,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342,409.20 : 32,013,613.80 = 19,578,812.40 : x
  2. Step 2: Convert to fraction form
    21,342,409.20/32,013,613.80 = 19,578,812.40/x
  3. Step 3: Cross multiply
    21,342,409.20x = 32,013,613.80 × 19,578,812.40
  4. Step 4: Simplify right side
    21,342,409.20x = 626,788,538,836,251.12
  5. Step 5: Solve for x
    x = 626,788,538,836,251.12/21,342,409.20
  6. Step 6: Final answer
    x = 29,368,218.60

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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.