Home / 78,147,875.77-107,863,666.32-53,072,413.27

Finding the Fourth Proportional to 78,147,875.77, 107,863,666.32 and 53,072,413.27

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Solution

The fourth proportional to 78,147,875.77, 107,863,666.32 and 53,072,413.27 is: 73,253,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,147,875.77 : 107,863,666.32 = 53,072,413.27 : x
  2. Step 2: Convert to fraction form
    78,147,875.77/107,863,666.32 = 53,072,413.27/x
  3. Step 3: Cross multiply
    78,147,875.77x = 107,863,666.32 × 53,072,413.27
  4. Step 4: Simplify right side
    78,147,875.77x = 5,724,585,075,752,420
  5. Step 5: Solve for x
    x = 5,724,585,075,752,420/78,147,875.77
  6. Step 6: Final answer
    x = 73,253,239.70

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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.