Home / 389,269,546.42-583,939,798.77-126,886,750.20

Finding the Fourth Proportional to 389,269,546.42, 583,939,798.77 and 126,886,750.20

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Solution

The fourth proportional to 389,269,546.42, 583,939,798.77 and 126,886,750.20 is: 190,341,690.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,269,546.42 : 583,939,798.77 = 126,886,750.20 : x
  2. Step 2: Convert to fraction form
    389,269,546.42/583,939,798.77 = 126,886,750.20/x
  3. Step 3: Cross multiply
    389,269,546.42x = 583,939,798.77 × 126,886,750.20
  4. Step 4: Simplify right side
    389,269,546.42x = 74,094,223,374,813,120
  5. Step 5: Solve for x
    x = 74,094,223,374,813,120/389,269,546.42
  6. Step 6: Final answer
    x = 190,341,690.11

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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.