Home / 21,575,496.28-29,775,090-12,408,146.32

Finding the Fourth Proportional to 21,575,496.28, 29,775,090 and 12,408,146.32

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Solution

The fourth proportional to 21,575,496.28, 29,775,090 and 12,408,146.32 is: 17,123,762.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575,496.28 : 29,775,090 = 12,408,146.32 : x
  2. Step 2: Convert to fraction form
    21,575,496.28/29,775,090 = 12,408,146.32/x
  3. Step 3: Cross multiply
    21,575,496.28x = 29,775,090 × 12,408,146.32
  4. Step 4: Simplify right side
    21,575,496.28x = 369,453,673,411,168.81
  5. Step 5: Solve for x
    x = 369,453,673,411,168.81/21,575,496.28
  6. Step 6: Final answer
    x = 17,123,762.47

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Double scale
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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.