Home / 579,307,072.40-869,968,378.20-307,209,280.40

Finding the Fourth Proportional to 579,307,072.40, 869,968,378.20 and 307,209,280.40

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Solution

The fourth proportional to 579,307,072.40, 869,968,378.20 and 307,209,280.40 is: 461,348,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,307,072.40 : 869,968,378.20 = 307,209,280.40 : x
  2. Step 2: Convert to fraction form
    579,307,072.40/869,968,378.20 = 307,209,280.40/x
  3. Step 3: Cross multiply
    579,307,072.40x = 869,968,378.20 × 307,209,280.40
  4. Step 4: Simplify right side
    579,307,072.40x = 267,262,359,437,577,056
  5. Step 5: Solve for x
    x = 267,262,359,437,577,056/579,307,072.40
  6. Step 6: Final answer
    x = 461,348,345.59

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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.