Home / 384,944,779.40-577,417,169.10-126,168,441.80

Finding the Fourth Proportional to 384,944,779.40, 577,417,169.10 and 126,168,441.80

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Solution

The fourth proportional to 384,944,779.40, 577,417,169.10 and 126,168,441.80 is: 189,252,662.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,944,779.40 : 577,417,169.10 = 126,168,441.80 : x
  2. Step 2: Convert to fraction form
    384,944,779.40/577,417,169.10 = 126,168,441.80/x
  3. Step 3: Cross multiply
    384,944,779.40x = 577,417,169.10 × 126,168,441.80
  4. Step 4: Simplify right side
    384,944,779.40x = 72,851,824,493,914,112
  5. Step 5: Solve for x
    x = 72,851,824,493,914,112/384,944,779.40
  6. Step 6: Final answer
    x = 189,252,662.70

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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.