Home / 43,009,215.60-64,513,823.40-21,510,130.80

Finding the Fourth Proportional to 43,009,215.60, 64,513,823.40 and 21,510,130.80

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Solution

The fourth proportional to 43,009,215.60, 64,513,823.40 and 21,510,130.80 is: 32,265,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,009,215.60 : 64,513,823.40 = 21,510,130.80 : x
  2. Step 2: Convert to fraction form
    43,009,215.60/64,513,823.40 = 21,510,130.80/x
  3. Step 3: Cross multiply
    43,009,215.60x = 64,513,823.40 × 21,510,130.80
  4. Step 4: Simplify right side
    43,009,215.60x = 1,387,700,779,742,100.75
  5. Step 5: Solve for x
    x = 1,387,700,779,742,100.75/43,009,215.60
  6. Step 6: Final answer
    x = 32,265,196.20

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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.