Home / 57,087,015-78,780,121.80-30,981,526.08

Finding the Fourth Proportional to 57,087,015, 78,780,121.80 and 30,981,526.08

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Solution

The fourth proportional to 57,087,015, 78,780,121.80 and 30,981,526.08 is: 42,754,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,087,015 : 78,780,121.80 = 30,981,526.08 : x
  2. Step 2: Convert to fraction form
    57,087,015/78,780,121.80 = 30,981,526.08/x
  3. Step 3: Cross multiply
    57,087,015x = 78,780,121.80 × 30,981,526.08
  4. Step 4: Simplify right side
    57,087,015x = 2,440,728,398,132,276.50
  5. Step 5: Solve for x
    x = 2,440,728,398,132,276.50/57,087,015
  6. Step 6: Final answer
    x = 42,754,528.30

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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.