Home / 387,082,401.60-580,623,602.40-99,868,065.60

Finding the Fourth Proportional to 387,082,401.60, 580,623,602.40 and 99,868,065.60

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Solution

The fourth proportional to 387,082,401.60, 580,623,602.40 and 99,868,065.60 is: 149,802,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,082,401.60 : 580,623,602.40 = 99,868,065.60 : x
  2. Step 2: Convert to fraction form
    387,082,401.60/580,623,602.40 = 99,868,065.60/x
  3. Step 3: Cross multiply
    387,082,401.60x = 580,623,602.40 × 99,868,065.60
  4. Step 4: Simplify right side
    387,082,401.60x = 57,985,756,013,391,512
  5. Step 5: Solve for x
    x = 57,985,756,013,391,512/387,082,401.60
  6. Step 6: Final answer
    x = 149,802,098.40

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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.