Home / 118,878,622.47-178,360,409.52-72,286,901.19

Finding the Fourth Proportional to 118,878,622.47, 178,360,409.52 and 72,286,901.19

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Solution

The fourth proportional to 118,878,622.47, 178,360,409.52 and 72,286,901.19 is: 108,456,180.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,878,622.47 : 178,360,409.52 = 72,286,901.19 : x
  2. Step 2: Convert to fraction form
    118,878,622.47/178,360,409.52 = 72,286,901.19/x
  3. Step 3: Cross multiply
    118,878,622.47x = 178,360,409.52 × 72,286,901.19
  4. Step 4: Simplify right side
    118,878,622.47x = 12,893,121,299,180,176
  5. Step 5: Solve for x
    x = 12,893,121,299,180,176/118,878,622.47
  6. Step 6: Final answer
    x = 108,456,180.19

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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.