Home / 990,448,023.60-1,482,144,841.80-862,461,284.40

Finding the Fourth Proportional to 990,448,023.60, 1,482,144,841.80 and 862,461,284.40

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Solution

The fourth proportional to 990,448,023.60, 1,482,144,841.80 and 862,461,284.40 is: 1,290,620,520.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,448,023.60 : 1,482,144,841.80 = 862,461,284.40 : x
  2. Step 2: Convert to fraction form
    990,448,023.60/1,482,144,841.80 = 862,461,284.40/x
  3. Step 3: Cross multiply
    990,448,023.60x = 1,482,144,841.80 × 862,461,284.40
  4. Step 4: Simplify right side
    990,448,023.60x = 1,278,292,543,925,662,720
  5. Step 5: Solve for x
    x = 1,278,292,543,925,662,720/990,448,023.60
  6. Step 6: Final answer
    x = 1,290,620,520.68

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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.