Home / 28,243,031.02-38,972,263.98-15,850,281.94

Finding the Fourth Proportional to 28,243,031.02, 38,972,263.98 and 15,850,281.94

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Solution

The fourth proportional to 28,243,031.02, 38,972,263.98 and 15,850,281.94 is: 21,871,638.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243,031.02 : 38,972,263.98 = 15,850,281.94 : x
  2. Step 2: Convert to fraction form
    28,243,031.02/38,972,263.98 = 15,850,281.94/x
  3. Step 3: Cross multiply
    28,243,031.02x = 38,972,263.98 × 15,850,281.94
  4. Step 4: Simplify right side
    28,243,031.02x = 617,721,371,923,106.50
  5. Step 5: Solve for x
    x = 617,721,371,923,106.50/28,243,031.02
  6. Step 6: Final answer
    x = 21,871,638.76

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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.