Home / 830,344,726.40-1,245,517,089.60-524,579,964.80

Finding the Fourth Proportional to 830,344,726.40, 1,245,517,089.60 and 524,579,964.80

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Solution

The fourth proportional to 830,344,726.40, 1,245,517,089.60 and 524,579,964.80 is: 786,869,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,344,726.40 : 1,245,517,089.60 = 524,579,964.80 : x
  2. Step 2: Convert to fraction form
    830,344,726.40/1,245,517,089.60 = 524,579,964.80/x
  3. Step 3: Cross multiply
    830,344,726.40x = 1,245,517,089.60 × 524,579,964.80
  4. Step 4: Simplify right side
    830,344,726.40x = 653,373,311,020,166,400
  5. Step 5: Solve for x
    x = 653,373,311,020,166,400/830,344,726.40
  6. Step 6: Final answer
    x = 786,869,947.20

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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.