Home / 7,172,192,912.31-9,897,660,595.84-3,957,102,740.30

Finding the Fourth Proportional to 7,172,192,912.31, 9,897,660,595.84 and 3,957,102,740.30

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Solution

The fourth proportional to 7,172,192,912.31, 9,897,660,595.84 and 3,957,102,740.30 is: 5,460,820,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,192,912.31 : 9,897,660,595.84 = 3,957,102,740.30 : x
  2. Step 2: Convert to fraction form
    7,172,192,912.31/9,897,660,595.84 = 3,957,102,740.30/x
  3. Step 3: Cross multiply
    7,172,192,912.31x = 9,897,660,595.84 × 3,957,102,740.30
  4. Step 4: Simplify right side
    7,172,192,912.31x = 39,166,059,866,360,774,656
  5. Step 5: Solve for x
    x = 39,166,059,866,360,774,656/7,172,192,912.31
  6. Step 6: Final answer
    x = 5,460,820,748.30

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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.