Home / 989,605,078.25-1,365,617,592.25-549,600,273.77

Finding the Fourth Proportional to 989,605,078.25, 1,365,617,592.25 and 549,600,273.77

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Solution

The fourth proportional to 989,605,078.25, 1,365,617,592.25 and 549,600,273.77 is: 758,427,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,605,078.25 : 1,365,617,592.25 = 549,600,273.77 : x
  2. Step 2: Convert to fraction form
    989,605,078.25/1,365,617,592.25 = 549,600,273.77/x
  3. Step 3: Cross multiply
    989,605,078.25x = 1,365,617,592.25 × 549,600,273.77
  4. Step 4: Simplify right side
    989,605,078.25x = 750,543,802,557,526,144
  5. Step 5: Solve for x
    x = 750,543,802,557,526,144/989,605,078.25
  6. Step 6: Final answer
    x = 758,427,598.10

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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.