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Finding the Fourth Proportional to 1,229,253,975.07, 1,695,298,412.88 and 871,313,764.93

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Solution

The fourth proportional to 1,229,253,975.07, 1,695,298,412.88 and 871,313,764.93 is: 1,201,653,094.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,253,975.07 : 1,695,298,412.88 = 871,313,764.93 : x
  2. Step 2: Convert to fraction form
    1,229,253,975.07/1,695,298,412.88 = 871,313,764.93/x
  3. Step 3: Cross multiply
    1,229,253,975.07x = 1,695,298,412.88 × 871,313,764.93
  4. Step 4: Simplify right side
    1,229,253,975.07x = 1,477,136,842,806,326,528
  5. Step 5: Solve for x
    x = 1,477,136,842,806,326,528/1,229,253,975.07
  6. Step 6: Final answer
    x = 1,201,653,094.29

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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.