Home / 477,056,015.70-715,584,023.55-422,636,457.30

Finding the Fourth Proportional to 477,056,015.70, 715,584,023.55 and 422,636,457.30

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Solution

The fourth proportional to 477,056,015.70, 715,584,023.55 and 422,636,457.30 is: 633,954,685.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,056,015.70 : 715,584,023.55 = 422,636,457.30 : x
  2. Step 2: Convert to fraction form
    477,056,015.70/715,584,023.55 = 422,636,457.30/x
  3. Step 3: Cross multiply
    477,056,015.70x = 715,584,023.55 × 422,636,457.30
  4. Step 4: Simplify right side
    477,056,015.70x = 302,431,896,613,651,776
  5. Step 5: Solve for x
    x = 302,431,896,613,651,776/477,056,015.70
  6. Step 6: Final answer
    x = 633,954,685.95

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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.