Home / 128,602,146.80-177,466,868.52-73,596,822.32

Finding the Fourth Proportional to 128,602,146.80, 177,466,868.52 and 73,596,822.32

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Solution

The fourth proportional to 128,602,146.80, 177,466,868.52 and 73,596,822.32 is: 101,561,271.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,602,146.80 : 177,466,868.52 = 73,596,822.32 : x
  2. Step 2: Convert to fraction form
    128,602,146.80/177,466,868.52 = 73,596,822.32/x
  3. Step 3: Cross multiply
    128,602,146.80x = 177,466,868.52 × 73,596,822.32
  4. Step 4: Simplify right side
    128,602,146.80x = 13,060,997,590,153,240
  5. Step 5: Solve for x
    x = 13,060,997,590,153,240/128,602,146.80
  6. Step 6: Final answer
    x = 101,561,271.84

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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.