Home / 90,440,362.72-124,807,762.07-50,742,413.28

Finding the Fourth Proportional to 90,440,362.72, 124,807,762.07 and 50,742,413.28

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Solution

The fourth proportional to 90,440,362.72, 124,807,762.07 and 50,742,413.28 is: 70,024,564.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,440,362.72 : 124,807,762.07 = 50,742,413.28 : x
  2. Step 2: Convert to fraction form
    90,440,362.72/124,807,762.07 = 50,742,413.28/x
  3. Step 3: Cross multiply
    90,440,362.72x = 124,807,762.07 × 50,742,413.28
  4. Step 4: Simplify right side
    90,440,362.72x = 6,333,047,043,444,420
  5. Step 5: Solve for x
    x = 6,333,047,043,444,420/90,440,362.72
  6. Step 6: Final answer
    x = 70,024,564.84

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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.