Home / 18,686,360,531.78-25,787,338,320.87-10,658,107,549.70

Finding the Fourth Proportional to 18,686,360,531.78, 25,787,338,320.87 and 10,658,107,549.70

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Solution

The fourth proportional to 18,686,360,531.78, 25,787,338,320.87 and 10,658,107,549.70 is: 14,708,280,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,360,531.78 : 25,787,338,320.87 = 10,658,107,549.70 : x
  2. Step 2: Convert to fraction form
    18,686,360,531.78/25,787,338,320.87 = 10,658,107,549.70/x
  3. Step 3: Cross multiply
    18,686,360,531.78x = 25,787,338,320.87 × 10,658,107,549.70
  4. Step 4: Simplify right side
    18,686,360,531.78x = 274,844,225,244,332,687,360
  5. Step 5: Solve for x
    x = 274,844,225,244,332,687,360/18,686,360,531.78
  6. Step 6: Final answer
    x = 14,708,280,126.40

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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.