Home / 71,973,409.82-99,220,001.29-51,310,983.74

Finding the Fourth Proportional to 71,973,409.82, 99,220,001.29 and 51,310,983.74

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Solution

The fourth proportional to 71,973,409.82, 99,220,001.29 and 51,310,983.74 is: 70,735,510.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,973,409.82 : 99,220,001.29 = 51,310,983.74 : x
  2. Step 2: Convert to fraction form
    71,973,409.82/99,220,001.29 = 51,310,983.74/x
  3. Step 3: Cross multiply
    71,973,409.82x = 99,220,001.29 × 51,310,983.74
  4. Step 4: Simplify right side
    71,973,409.82x = 5,091,075,872,249,591
  5. Step 5: Solve for x
    x = 5,091,075,872,249,591/71,973,409.82
  6. Step 6: Final answer
    x = 70,735,510.31

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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.