Home / 290,321,543.40-435,482,315.10-288,306,004.20

Finding the Fourth Proportional to 290,321,543.40, 435,482,315.10 and 288,306,004.20

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Solution

The fourth proportional to 290,321,543.40, 435,482,315.10 and 288,306,004.20 is: 432,459,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,321,543.40 : 435,482,315.10 = 288,306,004.20 : x
  2. Step 2: Convert to fraction form
    290,321,543.40/435,482,315.10 = 288,306,004.20/x
  3. Step 3: Cross multiply
    290,321,543.40x = 435,482,315.10 × 288,306,004.20
  4. Step 4: Simplify right side
    290,321,543.40x = 125,552,166,166,246,320
  5. Step 5: Solve for x
    x = 125,552,166,166,246,320/290,321,543.40
  6. Step 6: Final answer
    x = 432,459,006.30

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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.