Home / 118,888,145.20-178,332,217.80-100,748,292.40

Finding the Fourth Proportional to 118,888,145.20, 178,332,217.80 and 100,748,292.40

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Solution

The fourth proportional to 118,888,145.20, 178,332,217.80 and 100,748,292.40 is: 151,122,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,888,145.20 : 178,332,217.80 = 100,748,292.40 : x
  2. Step 2: Convert to fraction form
    118,888,145.20/178,332,217.80 = 100,748,292.40/x
  3. Step 3: Cross multiply
    118,888,145.20x = 178,332,217.80 × 100,748,292.40
  4. Step 4: Simplify right side
    118,888,145.20x = 17,966,666,423,254,886
  5. Step 5: Solve for x
    x = 17,966,666,423,254,886/118,888,145.20
  6. Step 6: Final answer
    x = 151,122,438.60

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1.5x scale

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.