Home / 635,871,789.81-877,374,428.94-371,502,724.59

Finding the Fourth Proportional to 635,871,789.81, 877,374,428.94 and 371,502,724.59

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Solution

The fourth proportional to 635,871,789.81, 877,374,428.94 and 371,502,724.59 is: 512,598,602.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,871,789.81 : 877,374,428.94 = 371,502,724.59 : x
  2. Step 2: Convert to fraction form
    635,871,789.81/877,374,428.94 = 371,502,724.59/x
  3. Step 3: Cross multiply
    635,871,789.81x = 877,374,428.94 × 371,502,724.59
  4. Step 4: Simplify right side
    635,871,789.81x = 325,946,990,836,805,312
  5. Step 5: Solve for x
    x = 325,946,990,836,805,312/635,871,789.81
  6. Step 6: Final answer
    x = 512,598,602.52

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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.