Home / 153,662,879.61-212,056,418.75-84,046,771.89

Finding the Fourth Proportional to 153,662,879.61, 212,056,418.75 and 84,046,771.89

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Solution

The fourth proportional to 153,662,879.61, 212,056,418.75 and 84,046,771.89 is: 115,985,444.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,662,879.61 : 212,056,418.75 = 84,046,771.89 : x
  2. Step 2: Convert to fraction form
    153,662,879.61/212,056,418.75 = 84,046,771.89/x
  3. Step 3: Cross multiply
    153,662,879.61x = 212,056,418.75 × 84,046,771.89
  4. Step 4: Simplify right side
    153,662,879.61x = 17,822,657,454,071,336
  5. Step 5: Solve for x
    x = 17,822,657,454,071,336/153,662,879.61
  6. Step 6: Final answer
    x = 115,985,444.89

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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.