Home / 217,820,545.60-326,730,818.40-216,545,087.20

Finding the Fourth Proportional to 217,820,545.60, 326,730,818.40 and 216,545,087.20

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Solution

The fourth proportional to 217,820,545.60, 326,730,818.40 and 216,545,087.20 is: 324,817,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,820,545.60 : 326,730,818.40 = 216,545,087.20 : x
  2. Step 2: Convert to fraction form
    217,820,545.60/326,730,818.40 = 216,545,087.20/x
  3. Step 3: Cross multiply
    217,820,545.60x = 326,730,818.40 × 216,545,087.20
  4. Step 4: Simplify right side
    217,820,545.60x = 70,751,953,561,355,352
  5. Step 5: Solve for x
    x = 70,751,953,561,355,352/217,820,545.60
  6. Step 6: Final answer
    x = 324,817,630.80

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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.