Home / 19,766,800.40-29,666,789.40-9,678,045.20

Finding the Fourth Proportional to 19,766,800.40, 29,666,789.40 and 9,678,045.20

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Solution

The fourth proportional to 19,766,800.40, 29,666,789.40 and 9,678,045.20 is: 14,525,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,766,800.40 : 29,666,789.40 = 9,678,045.20 : x
  2. Step 2: Convert to fraction form
    19,766,800.40/29,666,789.40 = 9,678,045.20/x
  3. Step 3: Cross multiply
    19,766,800.40x = 29,666,789.40 × 9,678,045.20
  4. Step 4: Simplify right side
    19,766,800.40x = 287,116,528,752,080.81
  5. Step 5: Solve for x
    x = 287,116,528,752,080.81/19,766,800.40
  6. Step 6: Final answer
    x = 14,525,189.86

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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.