Home / 509,970,631.95-765,144,904.73-203,482,702.35

Finding the Fourth Proportional to 509,970,631.95, 765,144,904.73 and 203,482,702.35

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Solution

The fourth proportional to 509,970,631.95, 765,144,904.73 and 203,482,702.35 is: 305,299,448.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,970,631.95 : 765,144,904.73 = 203,482,702.35 : x
  2. Step 2: Convert to fraction form
    509,970,631.95/765,144,904.73 = 203,482,702.35/x
  3. Step 3: Cross multiply
    509,970,631.95x = 765,144,904.73 × 203,482,702.35
  4. Step 4: Simplify right side
    509,970,631.95x = 155,693,752,902,776,288
  5. Step 5: Solve for x
    x = 155,693,752,902,776,288/509,970,631.95
  6. Step 6: Final answer
    x = 305,299,448.93

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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.