Home / 144,518,329.56-199,435,513.95-78,438,851.94

Finding the Fourth Proportional to 144,518,329.56, 199,435,513.95 and 78,438,851.94

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Solution

The fourth proportional to 144,518,329.56, 199,435,513.95 and 78,438,851.94 is: 108,245,734.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,518,329.56 : 199,435,513.95 = 78,438,851.94 : x
  2. Step 2: Convert to fraction form
    144,518,329.56/199,435,513.95 = 78,438,851.94/x
  3. Step 3: Cross multiply
    144,518,329.56x = 199,435,513.95 × 78,438,851.94
  4. Step 4: Simplify right side
    144,518,329.56x = 15,643,492,750,301,854
  5. Step 5: Solve for x
    x = 15,643,492,750,301,854/144,518,329.56
  6. Step 6: Final answer
    x = 108,245,734.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.