Home / 128,967,652.50-177,975,371.70-70,230,300

Finding the Fourth Proportional to 128,967,652.50, 177,975,371.70 and 70,230,300

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Solution

The fourth proportional to 128,967,652.50, 177,975,371.70 and 70,230,300 is: 96,917,820.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,967,652.50 : 177,975,371.70 = 70,230,300 : x
  2. Step 2: Convert to fraction form
    128,967,652.50/177,975,371.70 = 70,230,300/x
  3. Step 3: Cross multiply
    128,967,652.50x = 177,975,371.70 × 70,230,300
  4. Step 4: Simplify right side
    128,967,652.50x = 12,499,263,747,102,510
  5. Step 5: Solve for x
    x = 12,499,263,747,102,510/128,967,652.50
  6. Step 6: Final answer
    x = 96,917,820.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.