Home / 42,009,729.60-63,014,594.40-39,458,812.80

Finding the Fourth Proportional to 42,009,729.60, 63,014,594.40 and 39,458,812.80

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Solution

The fourth proportional to 42,009,729.60, 63,014,594.40 and 39,458,812.80 is: 59,188,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,009,729.60 : 63,014,594.40 = 39,458,812.80 : x
  2. Step 2: Convert to fraction form
    42,009,729.60/63,014,594.40 = 39,458,812.80/x
  3. Step 3: Cross multiply
    42,009,729.60x = 63,014,594.40 × 39,458,812.80
  4. Step 4: Simplify right side
    42,009,729.60x = 2,486,481,084,097,528
  5. Step 5: Solve for x
    x = 2,486,481,084,097,528/42,009,729.60
  6. Step 6: Final answer
    x = 59,188,219.20

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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.