Home / 612,431,623.20-918,647,434.80-558,862,370.40

Finding the Fourth Proportional to 612,431,623.20, 918,647,434.80 and 558,862,370.40

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Solution

The fourth proportional to 612,431,623.20, 918,647,434.80 and 558,862,370.40 is: 838,293,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,431,623.20 : 918,647,434.80 = 558,862,370.40 : x
  2. Step 2: Convert to fraction form
    612,431,623.20/918,647,434.80 = 558,862,370.40/x
  3. Step 3: Cross multiply
    612,431,623.20x = 918,647,434.80 × 558,862,370.40
  4. Step 4: Simplify right side
    612,431,623.20x = 513,397,482,974,207,424
  5. Step 5: Solve for x
    x = 513,397,482,974,207,424/612,431,623.20
  6. Step 6: Final answer
    x = 838,293,555.60

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1.5x scale

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.