Home / 21,064,510.80-31,596,766.20-5,918,442.30

Finding the Fourth Proportional to 21,064,510.80, 31,596,766.20 and 5,918,442.30

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Solution

The fourth proportional to 21,064,510.80, 31,596,766.20 and 5,918,442.30 is: 8,877,663.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064,510.80 : 31,596,766.20 = 5,918,442.30 : x
  2. Step 2: Convert to fraction form
    21,064,510.80/31,596,766.20 = 5,918,442.30/x
  3. Step 3: Cross multiply
    21,064,510.80x = 31,596,766.20 × 5,918,442.30
  4. Step 4: Simplify right side
    21,064,510.80x = 187,003,637,621,290.25
  5. Step 5: Solve for x
    x = 187,003,637,621,290.25/21,064,510.80
  6. Step 6: Final answer
    x = 8,877,663.45

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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.