Home / 73,872,075.30-110,808,112.95-72,360,420.90

Finding the Fourth Proportional to 73,872,075.30, 110,808,112.95 and 72,360,420.90

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Solution

The fourth proportional to 73,872,075.30, 110,808,112.95 and 72,360,420.90 is: 108,540,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,872,075.30 : 110,808,112.95 = 72,360,420.90 : x
  2. Step 2: Convert to fraction form
    73,872,075.30/110,808,112.95 = 72,360,420.90/x
  3. Step 3: Cross multiply
    73,872,075.30x = 110,808,112.95 × 72,360,420.90
  4. Step 4: Simplify right side
    73,872,075.30x = 8,018,121,692,196,742
  5. Step 5: Solve for x
    x = 8,018,121,692,196,742/73,872,075.30
  6. Step 6: Final answer
    x = 108,540,631.35

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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.