Home / 78,636,302.08-108,518,603.52-43,831,202.56

Finding the Fourth Proportional to 78,636,302.08, 108,518,603.52 and 43,831,202.56

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Solution

The fourth proportional to 78,636,302.08, 108,518,603.52 and 43,831,202.56 is: 60,487,341.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,636,302.08 : 108,518,603.52 = 43,831,202.56 : x
  2. Step 2: Convert to fraction form
    78,636,302.08/108,518,603.52 = 43,831,202.56/x
  3. Step 3: Cross multiply
    78,636,302.08x = 108,518,603.52 × 43,831,202.56
  4. Step 4: Simplify right side
    78,636,302.08x = 4,756,500,892,413,449
  5. Step 5: Solve for x
    x = 4,756,500,892,413,449/78,636,302.08
  6. Step 6: Final answer
    x = 60,487,341.93

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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.