Home / 29,231,975,895.28-40,340,156,590.80-15,865,971,780.40

Finding the Fourth Proportional to 29,231,975,895.28, 40,340,156,590.80 and 15,865,971,780.40

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Solution

The fourth proportional to 29,231,975,895.28, 40,340,156,590.80 and 15,865,971,780.40 is: 21,895,057,261.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,231,975,895.28 : 40,340,156,590.80 = 15,865,971,780.40 : x
  2. Step 2: Convert to fraction form
    29,231,975,895.28/40,340,156,590.80 = 15,865,971,780.40/x
  3. Step 3: Cross multiply
    29,231,975,895.28x = 40,340,156,590.80 × 15,865,971,780.40
  4. Step 4: Simplify right side
    29,231,975,895.28x = 640,035,786,086,549,946,368
  5. Step 5: Solve for x
    x = 640,035,786,086,549,946,368/29,231,975,895.28
  6. Step 6: Final answer
    x = 21,895,057,261.25

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1.5x scale

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.