Home / 7,146,166,560.10-9,861,655,429.69-3,931,007,494.40

Finding the Fourth Proportional to 7,146,166,560.10, 9,861,655,429.69 and 3,931,007,494.40

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Solution

The fourth proportional to 7,146,166,560.10, 9,861,655,429.69 and 3,931,007,494.40 is: 5,424,760,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146,166,560.10 : 9,861,655,429.69 = 3,931,007,494.40 : x
  2. Step 2: Convert to fraction form
    7,146,166,560.10/9,861,655,429.69 = 3,931,007,494.40/x
  3. Step 3: Cross multiply
    7,146,166,560.10x = 9,861,655,429.69 × 3,931,007,494.40
  4. Step 4: Simplify right side
    7,146,166,560.10x = 38,766,241,401,301,843,968
  5. Step 5: Solve for x
    x = 38,766,241,401,301,843,968/7,146,166,560.10
  6. Step 6: Final answer
    x = 5,424,760,404.80

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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.