Home / 7,146,162,182.80-9,861,975,897-3,974,575,438.90

Finding the Fourth Proportional to 7,146,162,182.80, 9,861,975,897 and 3,974,575,438.90

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Solution

The fourth proportional to 7,146,162,182.80, 9,861,975,897 and 3,974,575,438.90 is: 5,485,065,434.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146,162,182.80 : 9,861,975,897 = 3,974,575,438.90 : x
  2. Step 2: Convert to fraction form
    7,146,162,182.80/9,861,975,897 = 3,974,575,438.90/x
  3. Step 3: Cross multiply
    7,146,162,182.80x = 9,861,975,897 × 3,974,575,438.90
  4. Step 4: Simplify right side
    7,146,162,182.80x = 39,197,167,179,190,689,792
  5. Step 5: Solve for x
    x = 39,197,167,179,190,689,792/7,146,162,182.80
  6. Step 6: Final answer
    x = 5,485,065,434.64

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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.