Home / 139,639,509.28-209,492,234.16-43,901,397.28

Finding the Fourth Proportional to 139,639,509.28, 209,492,234.16 and 43,901,397.28

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Solution

The fourth proportional to 139,639,509.28, 209,492,234.16 and 43,901,397.28 is: 65,862,461.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,639,509.28 : 209,492,234.16 = 43,901,397.28 : x
  2. Step 2: Convert to fraction form
    139,639,509.28/209,492,234.16 = 43,901,397.28/x
  3. Step 3: Cross multiply
    139,639,509.28x = 209,492,234.16 × 43,901,397.28
  4. Step 4: Simplify right side
    139,639,509.28x = 9,197,001,798,932,948
  5. Step 5: Solve for x
    x = 9,197,001,798,932,948/139,639,509.28
  6. Step 6: Final answer
    x = 65,862,461.46

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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.