Home / 641,856,184.40-885,765,069.96-348,500,752.40

Finding the Fourth Proportional to 641,856,184.40, 885,765,069.96 and 348,500,752.40

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Solution

The fourth proportional to 641,856,184.40, 885,765,069.96 and 348,500,752.40 is: 480,932,957.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,856,184.40 : 885,765,069.96 = 348,500,752.40 : x
  2. Step 2: Convert to fraction form
    641,856,184.40/885,765,069.96 = 348,500,752.40/x
  3. Step 3: Cross multiply
    641,856,184.40x = 885,765,069.96 × 348,500,752.40
  4. Step 4: Simplify right side
    641,856,184.40x = 308,689,793,330,698,624
  5. Step 5: Solve for x
    x = 308,689,793,330,698,624/641,856,184.40
  6. Step 6: Final answer
    x = 480,932,957.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.