Home / 40,077,070.95-55,306,465.12-21,742,356.45

Finding the Fourth Proportional to 40,077,070.95, 55,306,465.12 and 21,742,356.45

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Solution

The fourth proportional to 40,077,070.95, 55,306,465.12 and 21,742,356.45 is: 30,004,510.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,077,070.95 : 55,306,465.12 = 21,742,356.45 : x
  2. Step 2: Convert to fraction form
    40,077,070.95/55,306,465.12 = 21,742,356.45/x
  3. Step 3: Cross multiply
    40,077,070.95x = 55,306,465.12 × 21,742,356.45
  4. Step 4: Simplify right side
    40,077,070.95x = 1,202,492,878,740,786.75
  5. Step 5: Solve for x
    x = 1,202,492,878,740,786.75/40,077,070.95
  6. Step 6: Final answer
    x = 30,004,510.06

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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.