Home / 13,438,784,126.40-20,158,176,189.60-12,374,579,428.80

Finding the Fourth Proportional to 13,438,784,126.40, 20,158,176,189.60 and 12,374,579,428.80

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Solution

The fourth proportional to 13,438,784,126.40, 20,158,176,189.60 and 12,374,579,428.80 is: 18,561,869,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,784,126.40 : 20,158,176,189.60 = 12,374,579,428.80 : x
  2. Step 2: Convert to fraction form
    13,438,784,126.40/20,158,176,189.60 = 12,374,579,428.80/x
  3. Step 3: Cross multiply
    13,438,784,126.40x = 20,158,176,189.60 × 12,374,579,428.80
  4. Step 4: Simplify right side
    13,438,784,126.40x = 249,448,952,397,950,091,264
  5. Step 5: Solve for x
    x = 249,448,952,397,950,091,264/13,438,784,126.40
  6. Step 6: Final answer
    x = 18,561,869,143.20

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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.