Home / 145,130,271.20-200,279,774.24-79,940,175.20

Finding the Fourth Proportional to 145,130,271.20, 200,279,774.24 and 79,940,175.20

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Solution

The fourth proportional to 145,130,271.20, 200,279,774.24 and 79,940,175.20 is: 110,317,441.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,130,271.20 : 200,279,774.24 = 79,940,175.20 : x
  2. Step 2: Convert to fraction form
    145,130,271.20/200,279,774.24 = 79,940,175.20/x
  3. Step 3: Cross multiply
    145,130,271.20x = 200,279,774.24 × 79,940,175.20
  4. Step 4: Simplify right side
    145,130,271.20x = 16,010,400,240,360,946
  5. Step 5: Solve for x
    x = 16,010,400,240,360,946/145,130,271.20
  6. Step 6: Final answer
    x = 110,317,441.76

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1.5x scale

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.