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Finding the Fourth Proportional to 605,566,478.40, 908,774,870.40 and 260,767,557.60

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Solution

The fourth proportional to 605,566,478.40, 908,774,870.40 and 260,767,557.60 is: 391,334,414.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,566,478.40 : 908,774,870.40 = 260,767,557.60 : x
  2. Step 2: Convert to fraction form
    605,566,478.40/908,774,870.40 = 260,767,557.60/x
  3. Step 3: Cross multiply
    605,566,478.40x = 908,774,870.40 × 260,767,557.60
  4. Step 4: Simplify right side
    605,566,478.40x = 236,979,003,362,464,512
  5. Step 5: Solve for x
    x = 236,979,003,362,464,512/605,566,478.40
  6. Step 6: Final answer
    x = 391,334,414.66

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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.