Home / 112,931,783.75-169,323,337.05-74,476,042.31

Finding the Fourth Proportional to 112,931,783.75, 169,323,337.05 and 74,476,042.31

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Solution

The fourth proportional to 112,931,783.75, 169,323,337.05 and 74,476,042.31 is: 111,665,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,931,783.75 : 169,323,337.05 = 74,476,042.31 : x
  2. Step 2: Convert to fraction form
    112,931,783.75/169,323,337.05 = 74,476,042.31/x
  3. Step 3: Cross multiply
    112,931,783.75x = 169,323,337.05 × 74,476,042.31
  4. Step 4: Simplify right side
    112,931,783.75x = 12,610,532,013,359,576
  5. Step 5: Solve for x
    x = 12,610,532,013,359,576/112,931,783.75
  6. Step 6: Final answer
    x = 111,665,038.80

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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.