Home / 28,016,521.20-42,030,686.70-8,849,215.80

Finding the Fourth Proportional to 28,016,521.20, 42,030,686.70 and 8,849,215.80

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Solution

The fourth proportional to 28,016,521.20, 42,030,686.70 and 8,849,215.80 is: 13,275,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016,521.20 : 42,030,686.70 = 8,849,215.80 : x
  2. Step 2: Convert to fraction form
    28,016,521.20/42,030,686.70 = 8,849,215.80/x
  3. Step 3: Cross multiply
    28,016,521.20x = 42,030,686.70 × 8,849,215.80
  4. Step 4: Simplify right side
    28,016,521.20x = 371,938,616,830,489.94
  5. Step 5: Solve for x
    x = 371,938,616,830,489.94/28,016,521.20
  6. Step 6: Final answer
    x = 13,275,688.80

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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.