Home / 523,348,904.40-722,226,264.48-288,407,994.54

Finding the Fourth Proportional to 523,348,904.40, 722,226,264.48 and 288,407,994.54

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Solution

The fourth proportional to 523,348,904.40, 722,226,264.48 and 288,407,994.54 is: 398,005,664.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,348,904.40 : 722,226,264.48 = 288,407,994.54 : x
  2. Step 2: Convert to fraction form
    523,348,904.40/722,226,264.48 = 288,407,994.54/x
  3. Step 3: Cross multiply
    523,348,904.40x = 722,226,264.48 × 288,407,994.54
  4. Step 4: Simplify right side
    523,348,904.40x = 208,295,828,542,792,448
  5. Step 5: Solve for x
    x = 208,295,828,542,792,448/523,348,904.40
  6. Step 6: Final answer
    x = 398,005,664.66

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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.