Home / 392,528,328,943.76-541,689,094,985.64-212,087,236,192.64

Finding the Fourth Proportional to 392,528,328,943.76, 541,689,094,985.64 and 212,087,236,192.64

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Solution

The fourth proportional to 392,528,328,943.76, 541,689,094,985.64 and 212,087,236,192.64 is: 292,680,386,509.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,528,328,943.76 : 541,689,094,985.64 = 212,087,236,192.64 : x
  2. Step 2: Convert to fraction form
    392,528,328,943.76/541,689,094,985.64 = 212,087,236,192.64/x
  3. Step 3: Cross multiply
    392,528,328,943.76x = 541,689,094,985.64 × 212,087,236,192.64
  4. Step 4: Simplify right side
    392,528,328,943.76x = 114,885,343,031,196,848,750,592
  5. Step 5: Solve for x
    x = 114,885,343,031,196,848,750,592/392,528,328,943.76
  6. Step 6: Final answer
    x = 292,680,386,509.52

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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.