Home / 288,880,561.04-398,655,946.96-156,721,557.56

Finding the Fourth Proportional to 288,880,561.04, 398,655,946.96 and 156,721,557.56

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Solution

The fourth proportional to 288,880,561.04, 398,655,946.96 and 156,721,557.56 is: 216,276,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,880,561.04 : 398,655,946.96 = 156,721,557.56 : x
  2. Step 2: Convert to fraction form
    288,880,561.04/398,655,946.96 = 156,721,557.56/x
  3. Step 3: Cross multiply
    288,880,561.04x = 398,655,946.96 × 156,721,557.56
  4. Step 4: Simplify right side
    288,880,561.04x = 62,477,980,938,127,944
  5. Step 5: Solve for x
    x = 62,477,980,938,127,944/288,880,561.04
  6. Step 6: Final answer
    x = 216,276,168.65

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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.