Home / 347,736,643.80-521,604,965.70-311,456,938.20

Finding the Fourth Proportional to 347,736,643.80, 521,604,965.70 and 311,456,938.20

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Solution

The fourth proportional to 347,736,643.80, 521,604,965.70 and 311,456,938.20 is: 467,185,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,736,643.80 : 521,604,965.70 = 311,456,938.20 : x
  2. Step 2: Convert to fraction form
    347,736,643.80/521,604,965.70 = 311,456,938.20/x
  3. Step 3: Cross multiply
    347,736,643.80x = 521,604,965.70 × 311,456,938.20
  4. Step 4: Simplify right side
    347,736,643.80x = 162,457,485,566,838,016
  5. Step 5: Solve for x
    x = 162,457,485,566,838,016/347,736,643.80
  6. Step 6: Final answer
    x = 467,185,407.30

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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.