Home / 20,556,898,670.41-28,377,815,526.63-12,947,128,229.14

Finding the Fourth Proportional to 20,556,898,670.41, 28,377,815,526.63 and 12,947,128,229.14

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Solution

The fourth proportional to 20,556,898,670.41, 28,377,815,526.63 and 12,947,128,229.14 is: 17,872,891,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556,898,670.41 : 28,377,815,526.63 = 12,947,128,229.14 : x
  2. Step 2: Convert to fraction form
    20,556,898,670.41/28,377,815,526.63 = 12,947,128,229.14/x
  3. Step 3: Cross multiply
    20,556,898,670.41x = 28,377,815,526.63 × 12,947,128,229.14
  4. Step 4: Simplify right side
    20,556,898,670.41x = 367,411,216,486,158,696,448
  5. Step 5: Solve for x
    x = 367,411,216,486,158,696,448/20,556,898,670.41
  6. Step 6: Final answer
    x = 17,872,891,352.77

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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.