Home / 852,705,604.80-1,279,058,407.20-489,908,548.80

Finding the Fourth Proportional to 852,705,604.80, 1,279,058,407.20 and 489,908,548.80

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Solution

The fourth proportional to 852,705,604.80, 1,279,058,407.20 and 489,908,548.80 is: 734,862,823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,705,604.80 : 1,279,058,407.20 = 489,908,548.80 : x
  2. Step 2: Convert to fraction form
    852,705,604.80/1,279,058,407.20 = 489,908,548.80/x
  3. Step 3: Cross multiply
    852,705,604.80x = 1,279,058,407.20 × 489,908,548.80
  4. Step 4: Simplify right side
    852,705,604.80x = 626,621,648,101,791,488
  5. Step 5: Solve for x
    x = 626,621,648,101,791,488/852,705,604.80
  6. Step 6: Final answer
    x = 734,862,823.20

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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.