Home / 1,442,705,348.18-1,990,765,418.54-807,660,614.12

Finding the Fourth Proportional to 1,442,705,348.18, 1,990,765,418.54 and 807,660,614.12

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Solution

The fourth proportional to 1,442,705,348.18, 1,990,765,418.54 and 807,660,614.12 is: 1,114,477,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,705,348.18 : 1,990,765,418.54 = 807,660,614.12 : x
  2. Step 2: Convert to fraction form
    1,442,705,348.18/1,990,765,418.54 = 807,660,614.12/x
  3. Step 3: Cross multiply
    1,442,705,348.18x = 1,990,765,418.54 × 807,660,614.12
  4. Step 4: Simplify right side
    1,442,705,348.18x = 1,607,862,820,506,875,136
  5. Step 5: Solve for x
    x = 1,607,862,820,506,875,136/1,442,705,348.18
  6. Step 6: Final answer
    x = 1,114,477,618.41

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Double scale
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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.