Home / 707,219,777.28-976,367,827.44-469,387,485.72

Finding the Fourth Proportional to 707,219,777.28, 976,367,827.44 and 469,387,485.72

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Solution

The fourth proportional to 707,219,777.28, 976,367,827.44 and 469,387,485.72 is: 648,023,223.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,219,777.28 : 976,367,827.44 = 469,387,485.72 : x
  2. Step 2: Convert to fraction form
    707,219,777.28/976,367,827.44 = 469,387,485.72/x
  3. Step 3: Cross multiply
    707,219,777.28x = 976,367,827.44 × 469,387,485.72
  4. Step 4: Simplify right side
    707,219,777.28x = 458,294,839,659,960,448
  5. Step 5: Solve for x
    x = 458,294,839,659,960,448/707,219,777.28
  6. Step 6: Final answer
    x = 648,023,223.31

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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.