Home / 77,485,925.03-106,938,134.69-57,872,777.81

Finding the Fourth Proportional to 77,485,925.03, 106,938,134.69 and 57,872,777.81

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Solution

The fourth proportional to 77,485,925.03, 106,938,134.69 and 57,872,777.81 is: 79,870,078.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,485,925.03 : 106,938,134.69 = 57,872,777.81 : x
  2. Step 2: Convert to fraction form
    77,485,925.03/106,938,134.69 = 57,872,777.81/x
  3. Step 3: Cross multiply
    77,485,925.03x = 106,938,134.69 × 57,872,777.81
  4. Step 4: Simplify right side
    77,485,925.03x = 6,188,806,907,506,169
  5. Step 5: Solve for x
    x = 6,188,806,907,506,169/77,485,925.03
  6. Step 6: Final answer
    x = 79,870,078.41

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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.