Home / 787,427,409.80-1,180,787,220.30-302,592,081.80

Finding the Fourth Proportional to 787,427,409.80, 1,180,787,220.30 and 302,592,081.80

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Solution

The fourth proportional to 787,427,409.80, 1,180,787,220.30 and 302,592,081.80 is: 453,752,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,427,409.80 : 1,180,787,220.30 = 302,592,081.80 : x
  2. Step 2: Convert to fraction form
    787,427,409.80/1,180,787,220.30 = 302,592,081.80/x
  3. Step 3: Cross multiply
    787,427,409.80x = 1,180,787,220.30 × 302,592,081.80
  4. Step 4: Simplify right side
    787,427,409.80x = 357,296,863,153,412,224
  5. Step 5: Solve for x
    x = 357,296,863,153,412,224/787,427,409.80
  6. Step 6: Final answer
    x = 453,752,128.40

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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.