Home / 1,433,520,817.90-1,978,358,154.62-869,029,492.79

Finding the Fourth Proportional to 1,433,520,817.90, 1,978,358,154.62 and 869,029,492.79

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Solution

The fourth proportional to 1,433,520,817.90, 1,978,358,154.62 and 869,029,492.79 is: 1,199,320,974.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,520,817.90 : 1,978,358,154.62 = 869,029,492.79 : x
  2. Step 2: Convert to fraction form
    1,433,520,817.90/1,978,358,154.62 = 869,029,492.79/x
  3. Step 3: Cross multiply
    1,433,520,817.90x = 1,978,358,154.62 × 869,029,492.79
  4. Step 4: Simplify right side
    1,433,520,817.90x = 1,719,251,583,666,979,840
  5. Step 5: Solve for x
    x = 1,719,251,583,666,979,840/1,433,520,817.90
  6. Step 6: Final answer
    x = 1,199,320,974.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.