Home / 18,778,392,003.80-28,167,588,005.70-13,268,411,715.80

Finding the Fourth Proportional to 18,778,392,003.80, 28,167,588,005.70 and 13,268,411,715.80

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Solution

The fourth proportional to 18,778,392,003.80, 28,167,588,005.70 and 13,268,411,715.80 is: 19,902,617,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778,392,003.80 : 28,167,588,005.70 = 13,268,411,715.80 : x
  2. Step 2: Convert to fraction form
    18,778,392,003.80/28,167,588,005.70 = 13,268,411,715.80/x
  3. Step 3: Cross multiply
    18,778,392,003.80x = 28,167,588,005.70 × 13,268,411,715.80
  4. Step 4: Simplify right side
    18,778,392,003.80x = 373,739,154,700,657,426,432
  5. Step 5: Solve for x
    x = 373,739,154,700,657,426,432/18,778,392,003.80
  6. Step 6: Final answer
    x = 19,902,617,573.70

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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.