Home / 553,588,778.60-763,939,066.02-306,063,768.68

Finding the Fourth Proportional to 553,588,778.60, 763,939,066.02 and 306,063,768.68

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Solution

The fourth proportional to 553,588,778.60, 763,939,066.02 and 306,063,768.68 is: 422,360,565.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,588,778.60 : 763,939,066.02 = 306,063,768.68 : x
  2. Step 2: Convert to fraction form
    553,588,778.60/763,939,066.02 = 306,063,768.68/x
  3. Step 3: Cross multiply
    553,588,778.60x = 763,939,066.02 × 306,063,768.68
  4. Step 4: Simplify right side
    553,588,778.60x = 233,814,069,587,960,512
  5. Step 5: Solve for x
    x = 233,814,069,587,960,512/553,588,778.60
  6. Step 6: Final answer
    x = 422,360,565.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.