Home / 6,906,221.40-10,359,332.10-5,478,547.80

Finding the Fourth Proportional to 6,906,221.40, 10,359,332.10 and 5,478,547.80

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Solution

The fourth proportional to 6,906,221.40, 10,359,332.10 and 5,478,547.80 is: 8,217,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,906,221.40 : 10,359,332.10 = 5,478,547.80 : x
  2. Step 2: Convert to fraction form
    6,906,221.40/10,359,332.10 = 5,478,547.80/x
  3. Step 3: Cross multiply
    6,906,221.40x = 10,359,332.10 × 5,478,547.80
  4. Step 4: Simplify right side
    6,906,221.40x = 56,754,096,085,924.38
  5. Step 5: Solve for x
    x = 56,754,096,085,924.38/6,906,221.40
  6. Step 6: Final answer
    x = 8,217,821.70

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1.5x scale

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.