Home / 290,426,646.30-435,639,969.45-288,726,035.10

Finding the Fourth Proportional to 290,426,646.30, 435,639,969.45 and 288,726,035.10

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Solution

The fourth proportional to 290,426,646.30, 435,639,969.45 and 288,726,035.10 is: 433,089,052.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,426,646.30 : 435,639,969.45 = 288,726,035.10 : x
  2. Step 2: Convert to fraction form
    290,426,646.30/435,639,969.45 = 288,726,035.10/x
  3. Step 3: Cross multiply
    290,426,646.30x = 435,639,969.45 × 288,726,035.10
  4. Step 4: Simplify right side
    290,426,646.30x = 125,780,601,110,383,632
  5. Step 5: Solve for x
    x = 125,780,601,110,383,632/290,426,646.30
  6. Step 6: Final answer
    x = 433,089,052.65

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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.