Home / 321,984,139.60-482,976,209.40-299,309,323.60

Finding the Fourth Proportional to 321,984,139.60, 482,976,209.40 and 299,309,323.60

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Solution

The fourth proportional to 321,984,139.60, 482,976,209.40 and 299,309,323.60 is: 448,963,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,984,139.60 : 482,976,209.40 = 299,309,323.60 : x
  2. Step 2: Convert to fraction form
    321,984,139.60/482,976,209.40 = 299,309,323.60/x
  3. Step 3: Cross multiply
    321,984,139.60x = 482,976,209.40 × 299,309,323.60
  4. Step 4: Simplify right side
    321,984,139.60x = 144,559,282,550,405,952
  5. Step 5: Solve for x
    x = 144,559,282,550,405,952/321,984,139.60
  6. Step 6: Final answer
    x = 448,963,985.40

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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.