Home / 289,417,275.90-433,993,203.45-127,776,008.70

Finding the Fourth Proportional to 289,417,275.90, 433,993,203.45 and 127,776,008.70

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Solution

The fourth proportional to 289,417,275.90, 433,993,203.45 and 127,776,008.70 is: 191,605,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,417,275.90 : 433,993,203.45 = 127,776,008.70 : x
  2. Step 2: Convert to fraction form
    289,417,275.90/433,993,203.45 = 127,776,008.70/x
  3. Step 3: Cross multiply
    289,417,275.90x = 433,993,203.45 × 127,776,008.70
  4. Step 4: Simplify right side
    289,417,275.90x = 55,453,919,339,768,072
  5. Step 5: Solve for x
    x = 55,453,919,339,768,072/289,417,275.90
  6. Step 6: Final answer
    x = 191,605,422.20

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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.