Home / 663,555,547.20-995,333,320.80-340,472,078.40

Finding the Fourth Proportional to 663,555,547.20, 995,333,320.80 and 340,472,078.40

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Solution

The fourth proportional to 663,555,547.20, 995,333,320.80 and 340,472,078.40 is: 510,708,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,555,547.20 : 995,333,320.80 = 340,472,078.40 : x
  2. Step 2: Convert to fraction form
    663,555,547.20/995,333,320.80 = 340,472,078.40/x
  3. Step 3: Cross multiply
    663,555,547.20x = 995,333,320.80 × 340,472,078.40
  4. Step 4: Simplify right side
    663,555,547.20x = 338,883,204,433,549,888
  5. Step 5: Solve for x
    x = 338,883,204,433,549,888/663,555,547.20
  6. Step 6: Final answer
    x = 510,708,117.60

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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.