Home / 7,220,031.77-9,963,657.95-3,956,967.63

Finding the Fourth Proportional to 7,220,031.77, 9,963,657.95 and 3,956,967.63

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Solution

The fourth proportional to 7,220,031.77, 9,963,657.95 and 3,956,967.63 is: 5,460,623.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220,031.77 : 9,963,657.95 = 3,956,967.63 : x
  2. Step 2: Convert to fraction form
    7,220,031.77/9,963,657.95 = 3,956,967.63/x
  3. Step 3: Cross multiply
    7,220,031.77x = 9,963,657.95 × 3,956,967.63
  4. Step 4: Simplify right side
    7,220,031.77x = 39,425,871,984,542.16
  5. Step 5: Solve for x
    x = 39,425,871,984,542.16/7,220,031.77
  6. Step 6: Final answer
    x = 5,460,623.06

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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.