Home / 920,431,328.72-1,380,652,154.40-307,013,870.48

Finding the Fourth Proportional to 920,431,328.72, 1,380,652,154.40 and 307,013,870.48

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Solution

The fourth proportional to 920,431,328.72, 1,380,652,154.40 and 307,013,870.48 is: 460,522,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,431,328.72 : 1,380,652,154.40 = 307,013,870.48 : x
  2. Step 2: Convert to fraction form
    920,431,328.72/1,380,652,154.40 = 307,013,870.48/x
  3. Step 3: Cross multiply
    920,431,328.72x = 1,380,652,154.40 × 307,013,870.48
  4. Step 4: Simplify right side
    920,431,328.72x = 423,879,361,708,894,592
  5. Step 5: Solve for x
    x = 423,879,361,708,894,592/920,431,328.72
  6. Step 6: Final answer
    x = 460,522,527.30

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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.