Home / 390,119,469.60-585,178,038-98,986,029.60

Finding the Fourth Proportional to 390,119,469.60, 585,178,038 and 98,986,029.60

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Solution

The fourth proportional to 390,119,469.60, 585,178,038 and 98,986,029.60 is: 148,478,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,119,469.60 : 585,178,038 = 98,986,029.60 : x
  2. Step 2: Convert to fraction form
    390,119,469.60/585,178,038 = 98,986,029.60/x
  3. Step 3: Cross multiply
    390,119,469.60x = 585,178,038 × 98,986,029.60
  4. Step 4: Simplify right side
    390,119,469.60x = 57,924,450,590,737,920
  5. Step 5: Solve for x
    x = 57,924,450,590,737,920/390,119,469.60
  6. Step 6: Final answer
    x = 148,478,748.45

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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.