Home / 311,459,884.36-429,817,426.02-172,240,013.32

Finding the Fourth Proportional to 311,459,884.36, 429,817,426.02 and 172,240,013.32

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Solution

The fourth proportional to 311,459,884.36, 429,817,426.02 and 172,240,013.32 is: 237,692,758.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,459,884.36 : 429,817,426.02 = 172,240,013.32 : x
  2. Step 2: Convert to fraction form
    311,459,884.36/429,817,426.02 = 172,240,013.32/x
  3. Step 3: Cross multiply
    311,459,884.36x = 429,817,426.02 × 172,240,013.32
  4. Step 4: Simplify right side
    311,459,884.36x = 74,031,759,182,852,912
  5. Step 5: Solve for x
    x = 74,031,759,182,852,912/311,459,884.36
  6. Step 6: Final answer
    x = 237,692,758.84

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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.