Home / 288,727,214.40-433,090,821.60-278,523,547.20

Finding the Fourth Proportional to 288,727,214.40, 433,090,821.60 and 278,523,547.20

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Solution

The fourth proportional to 288,727,214.40, 433,090,821.60 and 278,523,547.20 is: 417,785,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,727,214.40 : 433,090,821.60 = 278,523,547.20 : x
  2. Step 2: Convert to fraction form
    288,727,214.40/433,090,821.60 = 278,523,547.20/x
  3. Step 3: Cross multiply
    288,727,214.40x = 433,090,821.60 × 278,523,547.20
  4. Step 4: Simplify right side
    288,727,214.40x = 120,625,991,891,794,384
  5. Step 5: Solve for x
    x = 120,625,991,891,794,384/288,727,214.40
  6. Step 6: Final answer
    x = 417,785,320.80

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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.