Home / 185,358,520.40-278,137,313.40-77,664,030.80

Finding the Fourth Proportional to 185,358,520.40, 278,137,313.40 and 77,664,030.80

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Solution

The fourth proportional to 185,358,520.40, 278,137,313.40 and 77,664,030.80 is: 116,537,749.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,358,520.40 : 278,137,313.40 = 77,664,030.80 : x
  2. Step 2: Convert to fraction form
    185,358,520.40/278,137,313.40 = 77,664,030.80/x
  3. Step 3: Cross multiply
    185,358,520.40x = 278,137,313.40 × 77,664,030.80
  4. Step 4: Simplify right side
    185,358,520.40x = 21,601,264,874,526,852
  5. Step 5: Solve for x
    x = 21,601,264,874,526,852/185,358,520.40
  6. Step 6: Final answer
    x = 116,537,749.80

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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.