Home / 12,343,254.16-18,439,814.54-7,989,838.96

Finding the Fourth Proportional to 12,343,254.16, 18,439,814.54 and 7,989,838.96

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Solution

The fourth proportional to 12,343,254.16, 18,439,814.54 and 7,989,838.96 is: 11,936,167.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343,254.16 : 18,439,814.54 = 7,989,838.96 : x
  2. Step 2: Convert to fraction form
    12,343,254.16/18,439,814.54 = 7,989,838.96/x
  3. Step 3: Cross multiply
    12,343,254.16x = 18,439,814.54 × 7,989,838.96
  4. Step 4: Simplify right side
    12,343,254.16x = 147,331,148,626,866.47
  5. Step 5: Solve for x
    x = 147,331,148,626,866.47/12,343,254.16
  6. Step 6: Final answer
    x = 11,936,167.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.