Home / 7,138,851.90-9,851,692.47-3,875,702.10

Finding the Fourth Proportional to 7,138,851.90, 9,851,692.47 and 3,875,702.10

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Solution

The fourth proportional to 7,138,851.90, 9,851,692.47 and 3,875,702.10 is: 5,348,510.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138,851.90 : 9,851,692.47 = 3,875,702.10 : x
  2. Step 2: Convert to fraction form
    7,138,851.90/9,851,692.47 = 3,875,702.10/x
  3. Step 3: Cross multiply
    7,138,851.90x = 9,851,692.47 × 3,875,702.10
  4. Step 4: Simplify right side
    7,138,851.90x = 38,182,225,194,533.19
  5. Step 5: Solve for x
    x = 38,182,225,194,533.19/7,138,851.90
  6. Step 6: Final answer
    x = 5,348,510.62

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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.