Home / 76,793,442.21-105,972,915.47-45,433,108.80

Finding the Fourth Proportional to 76,793,442.21, 105,972,915.47 and 45,433,108.80

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Solution

The fourth proportional to 76,793,442.21, 105,972,915.47 and 45,433,108.80 is: 62,696,486.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,793,442.21 : 105,972,915.47 = 45,433,108.80 : x
  2. Step 2: Convert to fraction form
    76,793,442.21/105,972,915.47 = 45,433,108.80/x
  3. Step 3: Cross multiply
    76,793,442.21x = 105,972,915.47 × 45,433,108.80
  4. Step 4: Simplify right side
    76,793,442.21x = 4,814,678,998,174,547
  5. Step 5: Solve for x
    x = 4,814,678,998,174,547/76,793,442.21
  6. Step 6: Final answer
    x = 62,696,486.31

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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.