Home / 19,916,963.20-29,875,444.80-19,728,006.40

Finding the Fourth Proportional to 19,916,963.20, 29,875,444.80 and 19,728,006.40

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Solution

The fourth proportional to 19,916,963.20, 29,875,444.80 and 19,728,006.40 is: 29,592,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916,963.20 : 29,875,444.80 = 19,728,006.40 : x
  2. Step 2: Convert to fraction form
    19,916,963.20/29,875,444.80 = 19,728,006.40/x
  3. Step 3: Cross multiply
    19,916,963.20x = 29,875,444.80 × 19,728,006.40
  4. Step 4: Simplify right side
    19,916,963.20x = 589,382,966,217,246.75
  5. Step 5: Solve for x
    x = 589,382,966,217,246.75/19,916,963.20
  6. Step 6: Final answer
    x = 29,592,009.60

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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.