Home / 290,426,652.80-435,639,979.20-288,726,041.60

Finding the Fourth Proportional to 290,426,652.80, 435,639,979.20 and 288,726,041.60

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Solution

The fourth proportional to 290,426,652.80, 435,639,979.20 and 288,726,041.60 is: 433,089,062.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,426,652.80 : 435,639,979.20 = 288,726,041.60 : x
  2. Step 2: Convert to fraction form
    290,426,652.80/435,639,979.20 = 288,726,041.60/x
  3. Step 3: Cross multiply
    290,426,652.80x = 435,639,979.20 × 288,726,041.60
  4. Step 4: Simplify right side
    290,426,652.80x = 125,780,606,757,122,336
  5. Step 5: Solve for x
    x = 125,780,606,757,122,336/290,426,652.80
  6. Step 6: Final answer
    x = 433,089,062.40

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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.