Home / 12,938,166.28-17,854,719.33-7,136,864.47

Finding the Fourth Proportional to 12,938,166.28, 17,854,719.33 and 7,136,864.47

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Solution

The fourth proportional to 12,938,166.28, 17,854,719.33 and 7,136,864.47 is: 9,848,900.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,166.28 : 17,854,719.33 = 7,136,864.47 : x
  2. Step 2: Convert to fraction form
    12,938,166.28/17,854,719.33 = 7,136,864.47/x
  3. Step 3: Cross multiply
    12,938,166.28x = 17,854,719.33 × 7,136,864.47
  4. Step 4: Simplify right side
    12,938,166.28x = 127,426,712,008,099.19
  5. Step 5: Solve for x
    x = 127,426,712,008,099.19/12,938,166.28
  6. Step 6: Final answer
    x = 9,848,900.47

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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.