Home / 638,120,710.40-957,181,065.60-546,287,705.60

Finding the Fourth Proportional to 638,120,710.40, 957,181,065.60 and 546,287,705.60

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Solution

The fourth proportional to 638,120,710.40, 957,181,065.60 and 546,287,705.60 is: 819,431,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,120,710.40 : 957,181,065.60 = 546,287,705.60 : x
  2. Step 2: Convert to fraction form
    638,120,710.40/957,181,065.60 = 546,287,705.60/x
  3. Step 3: Cross multiply
    638,120,710.40x = 957,181,065.60 × 546,287,705.60
  4. Step 4: Simplify right side
    638,120,710.40x = 522,896,248,170,387,136
  5. Step 5: Solve for x
    x = 522,896,248,170,387,136/638,120,710.40
  6. Step 6: Final answer
    x = 819,431,558.40

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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.