Home / 25,728,286,214.88-38,575,912,132.80-9,990,341,241.12

Finding the Fourth Proportional to 25,728,286,214.88, 38,575,912,132.80 and 9,990,341,241.12

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Solution

The fourth proportional to 25,728,286,214.88, 38,575,912,132.80 and 9,990,341,241.12 is: 14,979,098,206.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728,286,214.88 : 38,575,912,132.80 = 9,990,341,241.12 : x
  2. Step 2: Convert to fraction form
    25,728,286,214.88/38,575,912,132.80 = 9,990,341,241.12/x
  3. Step 3: Cross multiply
    25,728,286,214.88x = 38,575,912,132.80 × 9,990,341,241.12
  4. Step 4: Simplify right side
    25,728,286,214.88x = 385,386,525,894,133,284,864
  5. Step 5: Solve for x
    x = 385,386,525,894,133,284,864/25,728,286,214.88
  6. Step 6: Final answer
    x = 14,979,098,206.36

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Double scale
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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.