Home / 21,205,160,438.40-31,807,740,657.60-7,246,543,708.80

Finding the Fourth Proportional to 21,205,160,438.40, 31,807,740,657.60 and 7,246,543,708.80

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Solution

The fourth proportional to 21,205,160,438.40, 31,807,740,657.60 and 7,246,543,708.80 is: 10,869,815,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205,160,438.40 : 31,807,740,657.60 = 7,246,543,708.80 : x
  2. Step 2: Convert to fraction form
    21,205,160,438.40/31,807,740,657.60 = 7,246,543,708.80/x
  3. Step 3: Cross multiply
    21,205,160,438.40x = 31,807,740,657.60 × 7,246,543,708.80
  4. Step 4: Simplify right side
    21,205,160,438.40x = 230,496,182,953,473,245,184
  5. Step 5: Solve for x
    x = 230,496,182,953,473,245,184/21,205,160,438.40
  6. Step 6: Final answer
    x = 10,869,815,563.20

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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.