Home / 319,117,040.34-477,693,792.27-208,213,909.08

Finding the Fourth Proportional to 319,117,040.34, 477,693,792.27 and 208,213,909.08

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Solution

The fourth proportional to 319,117,040.34, 477,693,792.27 and 208,213,909.08 is: 311,680,290.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,117,040.34 : 477,693,792.27 = 208,213,909.08 : x
  2. Step 2: Convert to fraction form
    319,117,040.34/477,693,792.27 = 208,213,909.08/x
  3. Step 3: Cross multiply
    319,117,040.34x = 477,693,792.27 × 208,213,909.08
  4. Step 4: Simplify right side
    319,117,040.34x = 99,462,491,831,786,192
  5. Step 5: Solve for x
    x = 99,462,491,831,786,192/319,117,040.34
  6. Step 6: Final answer
    x = 311,680,290.48

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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.