Home / 3,131,492,993.60-4,697,239,490.40-1,290,297,934.40

Finding the Fourth Proportional to 3,131,492,993.60, 4,697,239,490.40 and 1,290,297,934.40

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Solution

The fourth proportional to 3,131,492,993.60, 4,697,239,490.40 and 1,290,297,934.40 is: 1,935,446,901.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,492,993.60 : 4,697,239,490.40 = 1,290,297,934.40 : x
  2. Step 2: Convert to fraction form
    3,131,492,993.60/4,697,239,490.40 = 1,290,297,934.40/x
  3. Step 3: Cross multiply
    3,131,492,993.60x = 4,697,239,490.40 × 1,290,297,934.40
  4. Step 4: Simplify right side
    3,131,492,993.60x = 6,060,838,411,845,228,544
  5. Step 5: Solve for x
    x = 6,060,838,411,845,228,544/3,131,492,993.60
  6. Step 6: Final answer
    x = 1,935,446,901.60

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Double scale
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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.