Home / 189,623,411.76-261,701,576.80-107,122,510.92

Finding the Fourth Proportional to 189,623,411.76, 261,701,576.80 and 107,122,510.92

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Solution

The fourth proportional to 189,623,411.76, 261,701,576.80 and 107,122,510.92 is: 147,841,080.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,623,411.76 : 261,701,576.80 = 107,122,510.92 : x
  2. Step 2: Convert to fraction form
    189,623,411.76/261,701,576.80 = 107,122,510.92/x
  3. Step 3: Cross multiply
    189,623,411.76x = 261,701,576.80 × 107,122,510.92
  4. Step 4: Simplify right side
    189,623,411.76x = 28,034,130,018,539,220
  5. Step 5: Solve for x
    x = 28,034,130,018,539,220/189,623,411.76
  6. Step 6: Final answer
    x = 147,841,080.16

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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.