Home / 317,479,109.18-438,106,364.55-176,359,476.29

Finding the Fourth Proportional to 317,479,109.18, 438,106,364.55 and 176,359,476.29

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Solution

The fourth proportional to 317,479,109.18, 438,106,364.55 and 176,359,476.29 is: 243,367,852.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,479,109.18 : 438,106,364.55 = 176,359,476.29 : x
  2. Step 2: Convert to fraction form
    317,479,109.18/438,106,364.55 = 176,359,476.29/x
  3. Step 3: Cross multiply
    317,479,109.18x = 438,106,364.55 × 176,359,476.29
  4. Step 4: Simplify right side
    317,479,109.18x = 77,264,209,009,163,296
  5. Step 5: Solve for x
    x = 77,264,209,009,163,296/317,479,109.18
  6. Step 6: Final answer
    x = 243,367,852.49

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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.