Home / 990,448,002.60-1,482,144,810.30-862,461,263.40

Finding the Fourth Proportional to 990,448,002.60, 1,482,144,810.30 and 862,461,263.40

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Solution

The fourth proportional to 990,448,002.60, 1,482,144,810.30 and 862,461,263.40 is: 1,290,620,489.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,448,002.60 : 1,482,144,810.30 = 862,461,263.40 : x
  2. Step 2: Convert to fraction form
    990,448,002.60/1,482,144,810.30 = 862,461,263.40/x
  3. Step 3: Cross multiply
    990,448,002.60x = 1,482,144,810.30 × 862,461,263.40
  4. Step 4: Simplify right side
    990,448,002.60x = 1,278,292,485,633,091,328
  5. Step 5: Solve for x
    x = 1,278,292,485,633,091,328/990,448,002.60
  6. Step 6: Final answer
    x = 1,290,620,489.19

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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.