Home / 386,249,865,169.28-533,015,406,582.72-212,633,593,545.92

Finding the Fourth Proportional to 386,249,865,169.28, 533,015,406,582.72 and 212,633,593,545.92

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Solution

The fourth proportional to 386,249,865,169.28, 533,015,406,582.72 and 212,633,593,545.92 is: 293,429,180,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,249,865,169.28 : 533,015,406,582.72 = 212,633,593,545.92 : x
  2. Step 2: Convert to fraction form
    386,249,865,169.28/533,015,406,582.72 = 212,633,593,545.92/x
  3. Step 3: Cross multiply
    386,249,865,169.28x = 533,015,406,582.72 × 212,633,593,545.92
  4. Step 4: Simplify right side
    386,249,865,169.28x = 113,336,981,317,023,371,886,592
  5. Step 5: Solve for x
    x = 113,336,981,317,023,371,886,592/386,249,865,169.28
  6. Step 6: Final answer
    x = 293,429,180,272.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.