Home / 500,280,420.35-690,387,045.56-277,276,499.53

Finding the Fourth Proportional to 500,280,420.35, 690,387,045.56 and 277,276,499.53

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Solution

The fourth proportional to 500,280,420.35, 690,387,045.56 and 277,276,499.53 is: 382,641,605.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,280,420.35 : 690,387,045.56 = 277,276,499.53 : x
  2. Step 2: Convert to fraction form
    500,280,420.35/690,387,045.56 = 277,276,499.53/x
  3. Step 3: Cross multiply
    500,280,420.35x = 690,387,045.56 × 277,276,499.53
  4. Step 4: Simplify right side
    500,280,420.35x = 191,428,103,311,662,848
  5. Step 5: Solve for x
    x = 191,428,103,311,662,848/500,280,420.35
  6. Step 6: Final answer
    x = 382,641,605.64

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1.5x scale

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.