Home / 458,704,934.61-688,097,036.04-126,711,828.27

Finding the Fourth Proportional to 458,704,934.61, 688,097,036.04 and 126,711,828.27

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Solution

The fourth proportional to 458,704,934.61, 688,097,036.04 and 126,711,828.27 is: 190,078,690.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,704,934.61 : 688,097,036.04 = 126,711,828.27 : x
  2. Step 2: Convert to fraction form
    458,704,934.61/688,097,036.04 = 126,711,828.27/x
  3. Step 3: Cross multiply
    458,704,934.61x = 688,097,036.04 × 126,711,828.27
  4. Step 4: Simplify right side
    458,704,934.61x = 87,190,033,463,796,480
  5. Step 5: Solve for x
    x = 87,190,033,463,796,480/458,704,934.61
  6. Step 6: Final answer
    x = 190,078,690.86

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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.