Home / 66,430,413.70-99,645,620.55-60,371,986.30

Finding the Fourth Proportional to 66,430,413.70, 99,645,620.55 and 60,371,986.30

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Solution

The fourth proportional to 66,430,413.70, 99,645,620.55 and 60,371,986.30 is: 90,557,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,413.70 : 99,645,620.55 = 60,371,986.30 : x
  2. Step 2: Convert to fraction form
    66,430,413.70/99,645,620.55 = 60,371,986.30/x
  3. Step 3: Cross multiply
    66,430,413.70x = 99,645,620.55 × 60,371,986.30
  4. Step 4: Simplify right side
    66,430,413.70x = 6,015,804,038,699,598
  5. Step 5: Solve for x
    x = 6,015,804,038,699,598/66,430,413.70
  6. Step 6: Final answer
    x = 90,557,979.45

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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.