Home / 128,602,148.80-177,466,871.28-73,596,824.32

Finding the Fourth Proportional to 128,602,148.80, 177,466,871.28 and 73,596,824.32

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Solution

The fourth proportional to 128,602,148.80, 177,466,871.28 and 73,596,824.32 is: 101,561,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,602,148.80 : 177,466,871.28 = 73,596,824.32 : x
  2. Step 2: Convert to fraction form
    128,602,148.80/177,466,871.28 = 73,596,824.32/x
  3. Step 3: Cross multiply
    128,602,148.80x = 177,466,871.28 × 73,596,824.32
  4. Step 4: Simplify right side
    128,602,148.80x = 13,060,998,148,214,212
  5. Step 5: Solve for x
    x = 13,060,998,148,214,212/128,602,148.80
  6. Step 6: Final answer
    x = 101,561,274.60

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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.