Home / 212,868,004.40-319,302,006.60-76,535,673.20

Finding the Fourth Proportional to 212,868,004.40, 319,302,006.60 and 76,535,673.20

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Solution

The fourth proportional to 212,868,004.40, 319,302,006.60 and 76,535,673.20 is: 114,803,509.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,868,004.40 : 319,302,006.60 = 76,535,673.20 : x
  2. Step 2: Convert to fraction form
    212,868,004.40/319,302,006.60 = 76,535,673.20/x
  3. Step 3: Cross multiply
    212,868,004.40x = 319,302,006.60 × 76,535,673.20
  4. Step 4: Simplify right side
    212,868,004.40x = 24,437,994,029,241,844
  5. Step 5: Solve for x
    x = 24,437,994,029,241,844/212,868,004.40
  6. Step 6: Final answer
    x = 114,803,509.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.