Home / 118,889,701.65-178,334,552.48-86,473,112.85

Finding the Fourth Proportional to 118,889,701.65, 178,334,552.48 and 86,473,112.85

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Solution

The fourth proportional to 118,889,701.65, 178,334,552.48 and 86,473,112.85 is: 129,709,669.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,889,701.65 : 178,334,552.48 = 86,473,112.85 : x
  2. Step 2: Convert to fraction form
    118,889,701.65/178,334,552.48 = 86,473,112.85/x
  3. Step 3: Cross multiply
    118,889,701.65x = 178,334,552.48 × 86,473,112.85
  4. Step 4: Simplify right side
    118,889,701.65x = 15,421,143,881,224,920
  5. Step 5: Solve for x
    x = 15,421,143,881,224,920/118,889,701.65
  6. Step 6: Final answer
    x = 129,709,669.28

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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.