Home / 153,818,106.71-212,268,970.17-83,253,704.85

Finding the Fourth Proportional to 153,818,106.71, 212,268,970.17 and 83,253,704.85

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Solution

The fourth proportional to 153,818,106.71, 212,268,970.17 and 83,253,704.85 is: 114,890,103.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,818,106.71 : 212,268,970.17 = 83,253,704.85 : x
  2. Step 2: Convert to fraction form
    153,818,106.71/212,268,970.17 = 83,253,704.85/x
  3. Step 3: Cross multiply
    153,818,106.71x = 212,268,970.17 × 83,253,704.85
  4. Step 4: Simplify right side
    153,818,106.71x = 17,672,178,191,346,632
  5. Step 5: Solve for x
    x = 17,672,178,191,346,632/153,818,106.71
  6. Step 6: Final answer
    x = 114,890,103.45

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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.