Home / 756,016,085.40-1,134,024,128.10-678,531,987.60

Finding the Fourth Proportional to 756,016,085.40, 1,134,024,128.10 and 678,531,987.60

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Solution

The fourth proportional to 756,016,085.40, 1,134,024,128.10 and 678,531,987.60 is: 1,017,797,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,016,085.40 : 1,134,024,128.10 = 678,531,987.60 : x
  2. Step 2: Convert to fraction form
    756,016,085.40/1,134,024,128.10 = 678,531,987.60/x
  3. Step 3: Cross multiply
    756,016,085.40x = 1,134,024,128.10 × 678,531,987.60
  4. Step 4: Simplify right side
    756,016,085.40x = 769,471,645,626,049,920
  5. Step 5: Solve for x
    x = 769,471,645,626,049,920/756,016,085.40
  6. Step 6: Final answer
    x = 1,017,797,981.40

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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.