Home / 12,938,201.28-17,854,767.63-7,136,899.47

Finding the Fourth Proportional to 12,938,201.28, 17,854,767.63 and 7,136,899.47

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Solution

The fourth proportional to 12,938,201.28, 17,854,767.63 and 7,136,899.47 is: 9,848,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,201.28 : 17,854,767.63 = 7,136,899.47 : x
  2. Step 2: Convert to fraction form
    12,938,201.28/17,854,767.63 = 7,136,899.47/x
  3. Step 3: Cross multiply
    12,938,201.28x = 17,854,767.63 × 7,136,899.47
  4. Step 4: Simplify right side
    12,938,201.28x = 127,427,681,635,520.14
  5. Step 5: Solve for x
    x = 127,427,681,635,520.14/12,938,201.28
  6. Step 6: Final answer
    x = 9,848,948.77

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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.