Home / 28,371,978-39,153,373.38-16,148,835

Finding the Fourth Proportional to 28,371,978, 39,153,373.38 and 16,148,835

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Solution

The fourth proportional to 28,371,978, 39,153,373.38 and 16,148,835 is: 22,285,417.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,978 : 39,153,373.38 = 16,148,835 : x
  2. Step 2: Convert to fraction form
    28,371,978/39,153,373.38 = 16,148,835/x
  3. Step 3: Cross multiply
    28,371,978x = 39,153,373.38 × 16,148,835
  4. Step 4: Simplify right side
    28,371,978x = 632,281,366,407,012.38
  5. Step 5: Solve for x
    x = 632,281,366,407,012.38/28,371,978
  6. Step 6: Final answer
    x = 22,285,417.20

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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.