Home / 644,155,286.40-966,516,364.80-298,931,212.80

Finding the Fourth Proportional to 644,155,286.40, 966,516,364.80 and 298,931,212.80

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Solution

The fourth proportional to 644,155,286.40, 966,516,364.80 and 298,931,212.80 is: 448,528,352.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,155,286.40 : 966,516,364.80 = 298,931,212.80 : x
  2. Step 2: Convert to fraction form
    644,155,286.40/966,516,364.80 = 298,931,212.80/x
  3. Step 3: Cross multiply
    644,155,286.40x = 966,516,364.80 × 298,931,212.80
  4. Step 4: Simplify right side
    644,155,286.40x = 288,921,909,120,711,232
  5. Step 5: Solve for x
    x = 288,921,909,120,711,232/644,155,286.40
  6. Step 6: Final answer
    x = 448,528,352.12

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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.