Home / 290,305,666.20-435,458,499.30-218,642,050.20

Finding the Fourth Proportional to 290,305,666.20, 435,458,499.30 and 218,642,050.20

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Solution

The fourth proportional to 290,305,666.20, 435,458,499.30 and 218,642,050.20 is: 327,963,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,305,666.20 : 435,458,499.30 = 218,642,050.20 : x
  2. Step 2: Convert to fraction form
    290,305,666.20/435,458,499.30 = 218,642,050.20/x
  3. Step 3: Cross multiply
    290,305,666.20x = 435,458,499.30 × 218,642,050.20
  4. Step 4: Simplify right side
    290,305,666.20x = 95,209,539,063,967,264
  5. Step 5: Solve for x
    x = 95,209,539,063,967,264/290,305,666.20
  6. Step 6: Final answer
    x = 327,963,075.30

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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.