Home / 10,257,779.80-15,386,669.70-9,785,387.80

Finding the Fourth Proportional to 10,257,779.80, 15,386,669.70 and 9,785,387.80

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Solution

The fourth proportional to 10,257,779.80, 15,386,669.70 and 9,785,387.80 is: 14,678,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257,779.80 : 15,386,669.70 = 9,785,387.80 : x
  2. Step 2: Convert to fraction form
    10,257,779.80/15,386,669.70 = 9,785,387.80/x
  3. Step 3: Cross multiply
    10,257,779.80x = 15,386,669.70 × 9,785,387.80
  4. Step 4: Simplify right side
    10,257,779.80x = 150,564,529,965,009.66
  5. Step 5: Solve for x
    x = 150,564,529,965,009.66/10,257,779.80
  6. Step 6: Final answer
    x = 14,678,081.70

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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.