Home / 896,869,918.80-1,345,304,878.20-413,140,510.80

Finding the Fourth Proportional to 896,869,918.80, 1,345,304,878.20 and 413,140,510.80

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Solution

The fourth proportional to 896,869,918.80, 1,345,304,878.20 and 413,140,510.80 is: 619,710,766.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,869,918.80 : 1,345,304,878.20 = 413,140,510.80 : x
  2. Step 2: Convert to fraction form
    896,869,918.80/1,345,304,878.20 = 413,140,510.80/x
  3. Step 3: Cross multiply
    896,869,918.80x = 1,345,304,878.20 × 413,140,510.80
  4. Step 4: Simplify right side
    896,869,918.80x = 555,799,944,561,279,808
  5. Step 5: Solve for x
    x = 555,799,944,561,279,808/896,869,918.80
  6. Step 6: Final answer
    x = 619,710,766.20

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Double scale
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Similar ratio
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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.