Home / 127,746,009.20-191,619,013.80-126,402,316.40

Finding the Fourth Proportional to 127,746,009.20, 191,619,013.80 and 126,402,316.40

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Solution

The fourth proportional to 127,746,009.20, 191,619,013.80 and 126,402,316.40 is: 189,603,474.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,746,009.20 : 191,619,013.80 = 126,402,316.40 : x
  2. Step 2: Convert to fraction form
    127,746,009.20/191,619,013.80 = 126,402,316.40/x
  3. Step 3: Cross multiply
    127,746,009.20x = 191,619,013.80 × 126,402,316.40
  4. Step 4: Simplify right side
    127,746,009.20x = 24,221,087,210,603,568
  5. Step 5: Solve for x
    x = 24,221,087,210,603,568/127,746,009.20
  6. Step 6: Final answer
    x = 189,603,474.60

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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.