Home / 85,549,692.90-128,356,032.15-28,043,840.10

Finding the Fourth Proportional to 85,549,692.90, 128,356,032.15 and 28,043,840.10

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Solution

The fourth proportional to 85,549,692.90, 128,356,032.15 and 28,043,840.10 is: 42,076,083.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,549,692.90 : 128,356,032.15 = 28,043,840.10 : x
  2. Step 2: Convert to fraction form
    85,549,692.90/128,356,032.15 = 28,043,840.10/x
  3. Step 3: Cross multiply
    85,549,692.90x = 128,356,032.15 × 28,043,840.10
  4. Step 4: Simplify right side
    85,549,692.90x = 3,599,596,041,485,059.50
  5. Step 5: Solve for x
    x = 3,599,596,041,485,059.50/85,549,692.90
  6. Step 6: Final answer
    x = 42,076,083.73

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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.