Home / 293,688,019.20-440,532,028.80-157,639,123.20

Finding the Fourth Proportional to 293,688,019.20, 440,532,028.80 and 157,639,123.20

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Solution

The fourth proportional to 293,688,019.20, 440,532,028.80 and 157,639,123.20 is: 236,458,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,688,019.20 : 440,532,028.80 = 157,639,123.20 : x
  2. Step 2: Convert to fraction form
    293,688,019.20/440,532,028.80 = 157,639,123.20/x
  3. Step 3: Cross multiply
    293,688,019.20x = 440,532,028.80 × 157,639,123.20
  4. Step 4: Simplify right side
    293,688,019.20x = 69,445,082,761,549,144
  5. Step 5: Solve for x
    x = 69,445,082,761,549,144/293,688,019.20
  6. Step 6: Final answer
    x = 236,458,684.80

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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.