Home / 28,371,979-39,153,374.76-16,148,836

Finding the Fourth Proportional to 28,371,979, 39,153,374.76 and 16,148,836

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Solution

The fourth proportional to 28,371,979, 39,153,374.76 and 16,148,836 is: 22,285,418.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,979 : 39,153,374.76 = 16,148,836 : x
  2. Step 2: Convert to fraction form
    28,371,979/39,153,374.76 = 16,148,836/x
  3. Step 3: Cross multiply
    28,371,979x = 39,153,374.76 × 16,148,836
  4. Step 4: Simplify right side
    28,371,979x = 632,281,427,845,779.38
  5. Step 5: Solve for x
    x = 632,281,427,845,779.38/28,371,979
  6. Step 6: Final answer
    x = 22,285,418.58

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1.5x scale

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.