Home / 288,880,557.05-398,655,941.45-156,721,553.57

Finding the Fourth Proportional to 288,880,557.05, 398,655,941.45 and 156,721,553.57

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Solution

The fourth proportional to 288,880,557.05, 398,655,941.45 and 156,721,553.57 is: 216,276,163.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,880,557.05 : 398,655,941.45 = 156,721,553.57 : x
  2. Step 2: Convert to fraction form
    288,880,557.05/398,655,941.45 = 156,721,553.57/x
  3. Step 3: Cross multiply
    288,880,557.05x = 398,655,941.45 × 156,721,553.57
  4. Step 4: Simplify right side
    288,880,557.05x = 62,477,978,484,167,984
  5. Step 5: Solve for x
    x = 62,477,978,484,167,984/288,880,557.05
  6. Step 6: Final answer
    x = 216,276,163.14

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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.