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Finding the Fourth Proportional to 553,754,019.20, 830,631,028.80 and 230,595,900.80

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Solution

The fourth proportional to 553,754,019.20, 830,631,028.80 and 230,595,900.80 is: 345,893,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,754,019.20 : 830,631,028.80 = 230,595,900.80 : x
  2. Step 2: Convert to fraction form
    553,754,019.20/830,631,028.80 = 230,595,900.80/x
  3. Step 3: Cross multiply
    553,754,019.20x = 830,631,028.80 × 230,595,900.80
  4. Step 4: Simplify right side
    553,754,019.20x = 191,540,110,318,566,752
  5. Step 5: Solve for x
    x = 191,540,110,318,566,752/553,754,019.20
  6. Step 6: Final answer
    x = 345,893,851.20

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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.