Home / 20,117,475.72-30,175,918.56-4,971,407.40

Finding the Fourth Proportional to 20,117,475.72, 30,175,918.56 and 4,971,407.40

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Solution

The fourth proportional to 20,117,475.72, 30,175,918.56 and 4,971,407.40 is: 7,457,038.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117,475.72 : 30,175,918.56 = 4,971,407.40 : x
  2. Step 2: Convert to fraction form
    20,117,475.72/30,175,918.56 = 4,971,407.40/x
  3. Step 3: Cross multiply
    20,117,475.72x = 30,175,918.56 × 4,971,407.40
  4. Step 4: Simplify right side
    20,117,475.72x = 150,016,784,830,981.34
  5. Step 5: Solve for x
    x = 150,016,784,830,981.34/20,117,475.72
  6. Step 6: Final answer
    x = 7,457,038.19

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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.