Home / 213,048,017.80-319,572,026.70-145,023,569.80

Finding the Fourth Proportional to 213,048,017.80, 319,572,026.70 and 145,023,569.80

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Solution

The fourth proportional to 213,048,017.80, 319,572,026.70 and 145,023,569.80 is: 217,535,354.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,048,017.80 : 319,572,026.70 = 145,023,569.80 : x
  2. Step 2: Convert to fraction form
    213,048,017.80/319,572,026.70 = 145,023,569.80/x
  3. Step 3: Cross multiply
    213,048,017.80x = 319,572,026.70 × 145,023,569.80
  4. Step 4: Simplify right side
    213,048,017.80x = 46,345,476,120,254,912
  5. Step 5: Solve for x
    x = 46,345,476,120,254,912/213,048,017.80
  6. Step 6: Final answer
    x = 217,535,354.70

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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.