Home / 142,346,840.67-213,276,541.73-77,696,029.71

Finding the Fourth Proportional to 142,346,840.67, 213,276,541.73 and 77,696,029.71

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Solution

The fourth proportional to 142,346,840.67, 213,276,541.73 and 77,696,029.71 is: 116,411,017.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,346,840.67 : 213,276,541.73 = 77,696,029.71 : x
  2. Step 2: Convert to fraction form
    142,346,840.67/213,276,541.73 = 77,696,029.71/x
  3. Step 3: Cross multiply
    142,346,840.67x = 213,276,541.73 × 77,696,029.71
  4. Step 4: Simplify right side
    142,346,840.67x = 16,570,740,522,311,652
  5. Step 5: Solve for x
    x = 16,570,740,522,311,652/142,346,840.67
  6. Step 6: Final answer
    x = 116,411,017.23

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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.