Home / 1,240,992,855.30-1,712,556,210.03-676,465,376.70

Finding the Fourth Proportional to 1,240,992,855.30, 1,712,556,210.03 and 676,465,376.70

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Solution

The fourth proportional to 1,240,992,855.30, 1,712,556,210.03 and 676,465,376.70 is: 933,514,626.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,992,855.30 : 1,712,556,210.03 = 676,465,376.70 : x
  2. Step 2: Convert to fraction form
    1,240,992,855.30/1,712,556,210.03 = 676,465,376.70/x
  3. Step 3: Cross multiply
    1,240,992,855.30x = 1,712,556,210.03 × 676,465,376.70
  4. Step 4: Simplify right side
    1,240,992,855.30x = 1,158,484,981,737,868,288
  5. Step 5: Solve for x
    x = 1,158,484,981,737,868,288/1,240,992,855.30
  6. Step 6: Final answer
    x = 933,514,626.45

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.