Home / 389,473,341.39-537,509,266.88-215,633,085.39

Finding the Fourth Proportional to 389,473,341.39, 537,509,266.88 and 215,633,085.39

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Solution

The fourth proportional to 389,473,341.39, 537,509,266.88 and 215,633,085.39 is: 297,593,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,473,341.39 : 537,509,266.88 = 215,633,085.39 : x
  2. Step 2: Convert to fraction form
    389,473,341.39/537,509,266.88 = 215,633,085.39/x
  3. Step 3: Cross multiply
    389,473,341.39x = 537,509,266.88 × 215,633,085.39
  4. Step 4: Simplify right side
    389,473,341.39x = 115,904,781,641,973,168
  5. Step 5: Solve for x
    x = 115,904,781,641,973,168/389,473,341.39
  6. Step 6: Final answer
    x = 297,593,620.22

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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.