Home / 148,968,749.76-205,546,064.80-87,077,116.32

Finding the Fourth Proportional to 148,968,749.76, 205,546,064.80 and 87,077,116.32

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Solution

The fourth proportional to 148,968,749.76, 205,546,064.80 and 87,077,116.32 is: 120,148,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,968,749.76 : 205,546,064.80 = 87,077,116.32 : x
  2. Step 2: Convert to fraction form
    148,968,749.76/205,546,064.80 = 87,077,116.32/x
  3. Step 3: Cross multiply
    148,968,749.76x = 205,546,064.80 × 87,077,116.32
  4. Step 4: Simplify right side
    148,968,749.76x = 17,898,358,593,707,858
  5. Step 5: Solve for x
    x = 17,898,358,593,707,858/148,968,749.76
  6. Step 6: Final answer
    x = 120,148,411.14

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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.