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Finding the Fourth Proportional to 286,230,994.80, 429,346,492.20 and 266,957,401.20

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Solution

The fourth proportional to 286,230,994.80, 429,346,492.20 and 266,957,401.20 is: 400,436,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,230,994.80 : 429,346,492.20 = 266,957,401.20 : x
  2. Step 2: Convert to fraction form
    286,230,994.80/429,346,492.20 = 266,957,401.20/x
  3. Step 3: Cross multiply
    286,230,994.80x = 429,346,492.20 × 266,957,401.20
  4. Step 4: Simplify right side
    286,230,994.80x = 114,617,223,772,048,064
  5. Step 5: Solve for x
    x = 114,617,223,772,048,064/286,230,994.80
  6. Step 6: Final answer
    x = 400,436,101.80

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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.