Home / 77,427,237.07-106,852,406.69-42,143,338.10

Finding the Fourth Proportional to 77,427,237.07, 106,852,406.69 and 42,143,338.10

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Solution

The fourth proportional to 77,427,237.07, 106,852,406.69 and 42,143,338.10 is: 58,159,341.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,427,237.07 : 106,852,406.69 = 42,143,338.10 : x
  2. Step 2: Convert to fraction form
    77,427,237.07/106,852,406.69 = 42,143,338.10/x
  3. Step 3: Cross multiply
    77,427,237.07x = 106,852,406.69 × 42,143,338.10
  4. Step 4: Simplify right side
    77,427,237.07x = 4,503,117,101,888,969.50
  5. Step 5: Solve for x
    x = 4,503,117,101,888,969.50/77,427,237.07
  6. Step 6: Final answer
    x = 58,159,341.24

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Double scale
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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.