Home / 918,203,781.15-1,267,110,904.10-500,506,901.55

Finding the Fourth Proportional to 918,203,781.15, 1,267,110,904.10 and 500,506,901.55

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Solution

The fourth proportional to 918,203,781.15, 1,267,110,904.10 and 500,506,901.55 is: 690,693,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,203,781.15 : 1,267,110,904.10 = 500,506,901.55 : x
  2. Step 2: Convert to fraction form
    918,203,781.15/1,267,110,904.10 = 500,506,901.55/x
  3. Step 3: Cross multiply
    918,203,781.15x = 1,267,110,904.10 × 500,506,901.55
  4. Step 4: Simplify right side
    918,203,781.15x = 634,197,752,528,807,680
  5. Step 5: Solve for x
    x = 634,197,752,528,807,680/918,203,781.15
  6. Step 6: Final answer
    x = 690,693,902.10

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Double scale
Find fourth proportional to 918,203,782.15, 1,267,110,905.47 and 500,506,902.55
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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.