Home / 86,756,996.87-130,130,911.98-28,456,995.38

Finding the Fourth Proportional to 86,756,996.87, 130,130,911.98 and 28,456,995.38

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Solution

The fourth proportional to 86,756,996.87, 130,130,911.98 and 28,456,995.38 is: 42,683,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,756,996.87 : 130,130,911.98 = 28,456,995.38 : x
  2. Step 2: Convert to fraction form
    86,756,996.87/130,130,911.98 = 28,456,995.38/x
  3. Step 3: Cross multiply
    86,756,996.87x = 130,130,911.98 × 28,456,995.38
  4. Step 4: Simplify right side
    86,756,996.87x = 3,703,134,760,359,392
  5. Step 5: Solve for x
    x = 3,703,134,760,359,392/86,756,996.87
  6. Step 6: Final answer
    x = 42,683,989.70

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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.