Home / 19,938,905.40-29,908,358.10-6,477,094.20

Finding the Fourth Proportional to 19,938,905.40, 29,908,358.10 and 6,477,094.20

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Solution

The fourth proportional to 19,938,905.40, 29,908,358.10 and 6,477,094.20 is: 9,715,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938,905.40 : 29,908,358.10 = 6,477,094.20 : x
  2. Step 2: Convert to fraction form
    19,938,905.40/29,908,358.10 = 6,477,094.20/x
  3. Step 3: Cross multiply
    19,938,905.40x = 29,908,358.10 × 6,477,094.20
  4. Step 4: Simplify right side
    19,938,905.40x = 193,719,252,781,033.03
  5. Step 5: Solve for x
    x = 193,719,252,781,033.03/19,938,905.40
  6. Step 6: Final answer
    x = 9,715,641.30

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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.