Home / 83,533,819.40-125,300,729.10-77,865,115.40

Finding the Fourth Proportional to 83,533,819.40, 125,300,729.10 and 77,865,115.40

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Solution

The fourth proportional to 83,533,819.40, 125,300,729.10 and 77,865,115.40 is: 116,797,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,533,819.40 : 125,300,729.10 = 77,865,115.40 : x
  2. Step 2: Convert to fraction form
    83,533,819.40/125,300,729.10 = 77,865,115.40/x
  3. Step 3: Cross multiply
    83,533,819.40x = 125,300,729.10 × 77,865,115.40
  4. Step 4: Simplify right side
    83,533,819.40x = 9,756,555,731,075,638
  5. Step 5: Solve for x
    x = 9,756,555,731,075,638/83,533,819.40
  6. Step 6: Final answer
    x = 116,797,673.10

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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.