Home / 12,960,516.60-19,440,774.90-7,291,812.60

Finding the Fourth Proportional to 12,960,516.60, 19,440,774.90 and 7,291,812.60

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Solution

The fourth proportional to 12,960,516.60, 19,440,774.90 and 7,291,812.60 is: 10,937,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,516.60 : 19,440,774.90 = 7,291,812.60 : x
  2. Step 2: Convert to fraction form
    12,960,516.60/19,440,774.90 = 7,291,812.60/x
  3. Step 3: Cross multiply
    12,960,516.60x = 19,440,774.90 × 7,291,812.60
  4. Step 4: Simplify right side
    12,960,516.60x = 141,758,487,369,583.72
  5. Step 5: Solve for x
    x = 141,758,487,369,583.72/12,960,516.60
  6. Step 6: Final answer
    x = 10,937,718.90

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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.