Home / 477,056,017.20-715,584,025.80-422,636,458.80

Finding the Fourth Proportional to 477,056,017.20, 715,584,025.80 and 422,636,458.80

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Solution

The fourth proportional to 477,056,017.20, 715,584,025.80 and 422,636,458.80 is: 633,954,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,056,017.20 : 715,584,025.80 = 422,636,458.80 : x
  2. Step 2: Convert to fraction form
    477,056,017.20/715,584,025.80 = 422,636,458.80/x
  3. Step 3: Cross multiply
    477,056,017.20x = 715,584,025.80 × 422,636,458.80
  4. Step 4: Simplify right side
    477,056,017.20x = 302,431,898,637,959,808
  5. Step 5: Solve for x
    x = 302,431,898,637,959,808/477,056,017.20
  6. Step 6: Final answer
    x = 633,954,688.20

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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.