Home / 1,119,745,989.40-1,679,618,984.10-754,261,547.80

Finding the Fourth Proportional to 1,119,745,989.40, 1,679,618,984.10 and 754,261,547.80

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Solution

The fourth proportional to 1,119,745,989.40, 1,679,618,984.10 and 754,261,547.80 is: 1,131,392,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,745,989.40 : 1,679,618,984.10 = 754,261,547.80 : x
  2. Step 2: Convert to fraction form
    1,119,745,989.40/1,679,618,984.10 = 754,261,547.80/x
  3. Step 3: Cross multiply
    1,119,745,989.40x = 1,679,618,984.10 × 754,261,547.80
  4. Step 4: Simplify right side
    1,119,745,989.40x = 1,266,872,014,661,529,344
  5. Step 5: Solve for x
    x = 1,266,872,014,661,529,344/1,119,745,989.40
  6. Step 6: Final answer
    x = 1,131,392,321.70

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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.