Home / 208,215,302.32-287,337,143.91-115,401,802.24

Finding the Fourth Proportional to 208,215,302.32, 287,337,143.91 and 115,401,802.24

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Solution

The fourth proportional to 208,215,302.32, 287,337,143.91 and 115,401,802.24 is: 159,254,501.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,215,302.32 : 287,337,143.91 = 115,401,802.24 : x
  2. Step 2: Convert to fraction form
    208,215,302.32/287,337,143.91 = 115,401,802.24/x
  3. Step 3: Cross multiply
    208,215,302.32x = 287,337,143.91 × 115,401,802.24
  4. Step 4: Simplify right side
    208,215,302.32x = 33,159,224,257,708,240
  5. Step 5: Solve for x
    x = 33,159,224,257,708,240/208,215,302.32
  6. Step 6: Final answer
    x = 159,254,501.89

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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.