Home / 74,742,257.40-112,113,386.10-69,959,288.40

Finding the Fourth Proportional to 74,742,257.40, 112,113,386.10 and 69,959,288.40

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Solution

The fourth proportional to 74,742,257.40, 112,113,386.10 and 69,959,288.40 is: 104,938,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,742,257.40 : 112,113,386.10 = 69,959,288.40 : x
  2. Step 2: Convert to fraction form
    74,742,257.40/112,113,386.10 = 69,959,288.40/x
  3. Step 3: Cross multiply
    74,742,257.40x = 112,113,386.10 × 69,959,288.40
  4. Step 4: Simplify right side
    74,742,257.40x = 7,843,372,711,670,451
  5. Step 5: Solve for x
    x = 7,843,372,711,670,451/74,742,257.40
  6. Step 6: Final answer
    x = 104,938,932.60

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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.