Home / 209,045,802.88-288,499,367.34-125,417,080.72

Finding the Fourth Proportional to 209,045,802.88, 288,499,367.34 and 125,417,080.72

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Solution

The fourth proportional to 209,045,802.88, 288,499,367.34 and 125,417,080.72 is: 173,085,266.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,045,802.88 : 288,499,367.34 = 125,417,080.72 : x
  2. Step 2: Convert to fraction form
    209,045,802.88/288,499,367.34 = 125,417,080.72/x
  3. Step 3: Cross multiply
    209,045,802.88x = 288,499,367.34 × 125,417,080.72
  4. Step 4: Simplify right side
    209,045,802.88x = 36,182,748,441,349,712
  5. Step 5: Solve for x
    x = 36,182,748,441,349,712/209,045,802.88
  6. Step 6: Final answer
    x = 173,085,266.21

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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.