Home / 86,710,922.70-130,080,963.32-42,993,838.71

Finding the Fourth Proportional to 86,710,922.70, 130,080,963.32 and 42,993,838.71

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Solution

The fourth proportional to 86,710,922.70, 130,080,963.32 and 42,993,838.71 is: 64,497,986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,710,922.70 : 130,080,963.32 = 42,993,838.71 : x
  2. Step 2: Convert to fraction form
    86,710,922.70/130,080,963.32 = 42,993,838.71/x
  3. Step 3: Cross multiply
    86,710,922.70x = 130,080,963.32 × 42,993,838.71
  4. Step 4: Simplify right side
    86,710,922.70x = 5,592,679,955,571,101
  5. Step 5: Solve for x
    x = 5,592,679,955,571,101/86,710,922.70
  6. Step 6: Final answer
    x = 64,497,986.89

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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.