Home / 1,214,789,666.40-1,825,091,470.84-778,944,270.24

Finding the Fourth Proportional to 1,214,789,666.40, 1,825,091,470.84 and 778,944,270.24

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Solution

The fourth proportional to 1,214,789,666.40, 1,825,091,470.84 and 778,944,270.24 is: 1,170,280,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,789,666.40 : 1,825,091,470.84 = 778,944,270.24 : x
  2. Step 2: Convert to fraction form
    1,214,789,666.40/1,825,091,470.84 = 778,944,270.24/x
  3. Step 3: Cross multiply
    1,214,789,666.40x = 1,825,091,470.84 × 778,944,270.24
  4. Step 4: Simplify right side
    1,214,789,666.40x = 1,421,644,543,874,712,064
  5. Step 5: Solve for x
    x = 1,421,644,543,874,712,064/1,214,789,666.40
  6. Step 6: Final answer
    x = 1,170,280,405.90

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Double scale
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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.