Home / 86,943,947.70-130,415,921.55-56,332,946.10

Finding the Fourth Proportional to 86,943,947.70, 130,415,921.55 and 56,332,946.10

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Solution

The fourth proportional to 86,943,947.70, 130,415,921.55 and 56,332,946.10 is: 84,499,419.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,943,947.70 : 130,415,921.55 = 56,332,946.10 : x
  2. Step 2: Convert to fraction form
    86,943,947.70/130,415,921.55 = 56,332,946.10/x
  3. Step 3: Cross multiply
    86,943,947.70x = 130,415,921.55 × 56,332,946.10
  4. Step 4: Simplify right side
    86,943,947.70x = 7,346,713,079,257,978
  5. Step 5: Solve for x
    x = 7,346,713,079,257,978/86,943,947.70
  6. Step 6: Final answer
    x = 84,499,419.15

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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.