Home / 98,901,001.40-148,351,502.10-68,289,999.80

Finding the Fourth Proportional to 98,901,001.40, 148,351,502.10 and 68,289,999.80

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Solution

The fourth proportional to 98,901,001.40, 148,351,502.10 and 68,289,999.80 is: 102,434,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,901,001.40 : 148,351,502.10 = 68,289,999.80 : x
  2. Step 2: Convert to fraction form
    98,901,001.40/148,351,502.10 = 68,289,999.80/x
  3. Step 3: Cross multiply
    98,901,001.40x = 148,351,502.10 × 68,289,999.80
  4. Step 4: Simplify right side
    98,901,001.40x = 10,130,924,048,738,698
  5. Step 5: Solve for x
    x = 10,130,924,048,738,698/98,901,001.40
  6. Step 6: Final answer
    x = 102,434,999.70

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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.