Home / 72,508,068.72-100,063,197.36-39,470,448.36

Finding the Fourth Proportional to 72,508,068.72, 100,063,197.36 and 39,470,448.36

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Solution

The fourth proportional to 72,508,068.72, 100,063,197.36 and 39,470,448.36 is: 54,470,341.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,508,068.72 : 100,063,197.36 = 39,470,448.36 : x
  2. Step 2: Convert to fraction form
    72,508,068.72/100,063,197.36 = 39,470,448.36/x
  3. Step 3: Cross multiply
    72,508,068.72x = 100,063,197.36 × 39,470,448.36
  4. Step 4: Simplify right side
    72,508,068.72x = 3,949,539,264,134,368
  5. Step 5: Solve for x
    x = 3,949,539,264,134,368/72,508,068.72
  6. Step 6: Final answer
    x = 54,470,341.49

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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.