Home / 705,028,270.40-1,057,542,405.60-690,695,547.20

Finding the Fourth Proportional to 705,028,270.40, 1,057,542,405.60 and 690,695,547.20

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Solution

The fourth proportional to 705,028,270.40, 1,057,542,405.60 and 690,695,547.20 is: 1,036,043,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,028,270.40 : 1,057,542,405.60 = 690,695,547.20 : x
  2. Step 2: Convert to fraction form
    705,028,270.40/1,057,542,405.60 = 690,695,547.20/x
  3. Step 3: Cross multiply
    705,028,270.40x = 1,057,542,405.60 × 690,695,547.20
  4. Step 4: Simplify right side
    705,028,270.40x = 730,439,830,523,096,448
  5. Step 5: Solve for x
    x = 730,439,830,523,096,448/705,028,270.40
  6. Step 6: Final answer
    x = 1,036,043,320.80

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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.