Home / 380,268,869,721-524,783,625,322.45-208,996,872,031.34

Finding the Fourth Proportional to 380,268,869,721, 524,783,625,322.45 and 208,996,872,031.34

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Solution

The fourth proportional to 380,268,869,721, 524,783,625,322.45 and 208,996,872,031.34 is: 288,422,600,214.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,268,869,721 : 524,783,625,322.45 = 208,996,872,031.34 : x
  2. Step 2: Convert to fraction form
    380,268,869,721/524,783,625,322.45 = 208,996,872,031.34/x
  3. Step 3: Cross multiply
    380,268,869,721x = 524,783,625,322.45 × 208,996,872,031.34
  4. Step 4: Simplify right side
    380,268,869,721x = 109,678,136,185,658,762,330,112
  5. Step 5: Solve for x
    x = 109,678,136,185,658,762,330,112/380,268,869,721
  6. Step 6: Final answer
    x = 288,422,600,214.76

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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.