Home / 989,845,819.40-1,484,768,729.10-974,540,318.60

Finding the Fourth Proportional to 989,845,819.40, 1,484,768,729.10 and 974,540,318.60

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Solution

The fourth proportional to 989,845,819.40, 1,484,768,729.10 and 974,540,318.60 is: 1,461,810,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,845,819.40 : 1,484,768,729.10 = 974,540,318.60 : x
  2. Step 2: Convert to fraction form
    989,845,819.40/1,484,768,729.10 = 974,540,318.60/x
  3. Step 3: Cross multiply
    989,845,819.40x = 1,484,768,729.10 × 974,540,318.60
  4. Step 4: Simplify right side
    989,845,819.40x = 1,446,966,990,304,431,104
  5. Step 5: Solve for x
    x = 1,446,966,990,304,431,104/989,845,819.40
  6. Step 6: Final answer
    x = 1,461,810,477.90

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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.