Home / 28,051,560,352.24-38,711,174,156.84-15,191,300,140.48

Finding the Fourth Proportional to 28,051,560,352.24, 38,711,174,156.84 and 15,191,300,140.48

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Solution

The fourth proportional to 28,051,560,352.24, 38,711,174,156.84 and 15,191,300,140.48 is: 20,964,005,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051,560,352.24 : 38,711,174,156.84 = 15,191,300,140.48 : x
  2. Step 2: Convert to fraction form
    28,051,560,352.24/38,711,174,156.84 = 15,191,300,140.48/x
  3. Step 3: Cross multiply
    28,051,560,352.24x = 38,711,174,156.84 × 15,191,300,140.48
  4. Step 4: Simplify right side
    28,051,560,352.24x = 588,073,065,406,949,163,008
  5. Step 5: Solve for x
    x = 588,073,065,406,949,163,008/28,051,560,352.24
  6. Step 6: Final answer
    x = 20,964,005,496.40

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Double scale
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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.