Home / 127,746,008.20-191,619,012.30-126,402,315.40

Finding the Fourth Proportional to 127,746,008.20, 191,619,012.30 and 126,402,315.40

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Solution

The fourth proportional to 127,746,008.20, 191,619,012.30 and 126,402,315.40 is: 189,603,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,746,008.20 : 191,619,012.30 = 126,402,315.40 : x
  2. Step 2: Convert to fraction form
    127,746,008.20/191,619,012.30 = 126,402,315.40/x
  3. Step 3: Cross multiply
    127,746,008.20x = 191,619,012.30 × 126,402,315.40
  4. Step 4: Simplify right side
    127,746,008.20x = 24,221,086,829,381,084
  5. Step 5: Solve for x
    x = 24,221,086,829,381,084/127,746,008.20
  6. Step 6: Final answer
    x = 189,603,473.10

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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.