Home / 86,736,228.80-130,253,642.40-61,355,364.80

Finding the Fourth Proportional to 86,736,228.80, 130,253,642.40 and 61,355,364.80

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Solution

The fourth proportional to 86,736,228.80, 130,253,642.40 and 61,355,364.80 is: 92,138,658.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,736,228.80 : 130,253,642.40 = 61,355,364.80 : x
  2. Step 2: Convert to fraction form
    86,736,228.80/130,253,642.40 = 61,355,364.80/x
  3. Step 3: Cross multiply
    86,736,228.80x = 130,253,642.40 × 61,355,364.80
  4. Step 4: Simplify right side
    86,736,228.80x = 7,991,759,745,980,747
  5. Step 5: Solve for x
    x = 7,991,759,745,980,747/86,736,228.80
  6. Step 6: Final answer
    x = 92,138,658.28

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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.