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Finding the Fourth Proportional to 554,717,268.32, 830,755,123.97 and 321,055,946.64

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Solution

The fourth proportional to 554,717,268.32, 830,755,123.97 and 321,055,946.64 is: 480,819,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,717,268.32 : 830,755,123.97 = 321,055,946.64 : x
  2. Step 2: Convert to fraction form
    554,717,268.32/830,755,123.97 = 321,055,946.64/x
  3. Step 3: Cross multiply
    554,717,268.32x = 830,755,123.97 × 321,055,946.64
  4. Step 4: Simplify right side
    554,717,268.32x = 266,718,872,750,613,632
  5. Step 5: Solve for x
    x = 266,718,872,750,613,632/554,717,268.32
  6. Step 6: Final answer
    x = 480,819,487.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.