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Finding the Fourth Proportional to 527,473,360.80, 789,698,386.80 and 512,356,816.80

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Solution

The fourth proportional to 527,473,360.80, 789,698,386.80 and 512,356,816.80 is: 767,066,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,473,360.80 : 789,698,386.80 = 512,356,816.80 : x
  2. Step 2: Convert to fraction form
    527,473,360.80/789,698,386.80 = 512,356,816.80/x
  3. Step 3: Cross multiply
    527,473,360.80x = 789,698,386.80 × 512,356,816.80
  4. Step 4: Simplify right side
    527,473,360.80x = 404,607,351,692,943,104
  5. Step 5: Solve for x
    x = 404,607,351,692,943,104/527,473,360.80
  6. Step 6: Final answer
    x = 767,066,892.40

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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.