Home / 157,068,880.86-216,748,062.03-90,039,784.47

Finding the Fourth Proportional to 157,068,880.86, 216,748,062.03 and 90,039,784.47

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Solution

The fourth proportional to 157,068,880.86, 216,748,062.03 and 90,039,784.47 is: 124,250,893.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,068,880.86 : 216,748,062.03 = 90,039,784.47 : x
  2. Step 2: Convert to fraction form
    157,068,880.86/216,748,062.03 = 90,039,784.47/x
  3. Step 3: Cross multiply
    157,068,880.86x = 216,748,062.03 × 90,039,784.47
  4. Step 4: Simplify right side
    157,068,880.86x = 19,515,948,789,471,392
  5. Step 5: Solve for x
    x = 19,515,948,789,471,392/157,068,880.86
  6. Step 6: Final answer
    x = 124,250,893.51

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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.