Home / 260,031,843.69-390,181,866.26-121,871,486.93

Finding the Fourth Proportional to 260,031,843.69, 390,181,866.26 and 121,871,486.93

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Solution

The fourth proportional to 260,031,843.69, 390,181,866.26 and 121,871,486.93 is: 182,870,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,031,843.69 : 390,181,866.26 = 121,871,486.93 : x
  2. Step 2: Convert to fraction form
    260,031,843.69/390,181,866.26 = 121,871,486.93/x
  3. Step 3: Cross multiply
    260,031,843.69x = 390,181,866.26 × 121,871,486.93
  4. Step 4: Simplify right side
    260,031,843.69x = 47,552,044,212,643,784
  5. Step 5: Solve for x
    x = 47,552,044,212,643,784/260,031,843.69
  6. Step 6: Final answer
    x = 182,870,080.59

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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.