Home / 74,742,976.80-112,114,465.20-68,696,359.20

Finding the Fourth Proportional to 74,742,976.80, 112,114,465.20 and 68,696,359.20

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Solution

The fourth proportional to 74,742,976.80, 112,114,465.20 and 68,696,359.20 is: 103,044,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,742,976.80 : 112,114,465.20 = 68,696,359.20 : x
  2. Step 2: Convert to fraction form
    74,742,976.80/112,114,465.20 = 68,696,359.20/x
  3. Step 3: Cross multiply
    74,742,976.80x = 112,114,465.20 × 68,696,359.20
  4. Step 4: Simplify right side
    74,742,976.80x = 7,701,855,572,895,100
  5. Step 5: Solve for x
    x = 7,701,855,572,895,100/74,742,976.80
  6. Step 6: Final answer
    x = 103,044,538.80

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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.