Home / 28,552,368,787.61-39,403,213,875.75-15,692,464,572.65

Finding the Fourth Proportional to 28,552,368,787.61, 39,403,213,875.75 and 15,692,464,572.65

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Solution

The fourth proportional to 28,552,368,787.61, 39,403,213,875.75 and 15,692,464,572.65 is: 21,656,120,456.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552,368,787.61 : 39,403,213,875.75 = 15,692,464,572.65 : x
  2. Step 2: Convert to fraction form
    28,552,368,787.61/39,403,213,875.75 = 15,692,464,572.65/x
  3. Step 3: Cross multiply
    28,552,368,787.61x = 39,403,213,875.75 × 15,692,464,572.65
  4. Step 4: Simplify right side
    28,552,368,787.61x = 618,333,537,793,710,751,744
  5. Step 5: Solve for x
    x = 618,333,537,793,710,751,744/28,552,368,787.61
  6. Step 6: Final answer
    x = 21,656,120,456.88

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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.