Home / 918,203,784.15-1,267,110,908.22-500,506,904.55

Finding the Fourth Proportional to 918,203,784.15, 1,267,110,908.22 and 500,506,904.55

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Solution

The fourth proportional to 918,203,784.15, 1,267,110,908.22 and 500,506,904.55 is: 690,693,906.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,203,784.15 : 1,267,110,908.22 = 500,506,904.55 : x
  2. Step 2: Convert to fraction form
    918,203,784.15/1,267,110,908.22 = 500,506,904.55/x
  3. Step 3: Cross multiply
    918,203,784.15x = 1,267,110,908.22 × 500,506,904.55
  4. Step 4: Simplify right side
    918,203,784.15x = 634,197,758,394,731,392
  5. Step 5: Solve for x
    x = 634,197,758,394,731,392/918,203,784.15
  6. Step 6: Final answer
    x = 690,693,906.24

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Double scale
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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.