Home / 40,465,328.76-55,842,114.32-21,880,424.40

Finding the Fourth Proportional to 40,465,328.76, 55,842,114.32 and 21,880,424.40

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Solution

The fourth proportional to 40,465,328.76, 55,842,114.32 and 21,880,424.40 is: 30,194,964.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,465,328.76 : 55,842,114.32 = 21,880,424.40 : x
  2. Step 2: Convert to fraction form
    40,465,328.76/55,842,114.32 = 21,880,424.40/x
  3. Step 3: Cross multiply
    40,465,328.76x = 55,842,114.32 × 21,880,424.40
  4. Step 4: Simplify right side
    40,465,328.76x = 1,221,849,160,478,159
  5. Step 5: Solve for x
    x = 1,221,849,160,478,159/40,465,328.76
  6. Step 6: Final answer
    x = 30,194,964.38

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1.5x scale

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.