Home / 80,424,009.60-120,636,014.40-57,749,193.60

Finding the Fourth Proportional to 80,424,009.60, 120,636,014.40 and 57,749,193.60

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Solution

The fourth proportional to 80,424,009.60, 120,636,014.40 and 57,749,193.60 is: 86,623,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,424,009.60 : 120,636,014.40 = 57,749,193.60 : x
  2. Step 2: Convert to fraction form
    80,424,009.60/120,636,014.40 = 57,749,193.60/x
  3. Step 3: Cross multiply
    80,424,009.60x = 120,636,014.40 × 57,749,193.60
  4. Step 4: Simplify right side
    80,424,009.60x = 6,966,632,550,717,988
  5. Step 5: Solve for x
    x = 6,966,632,550,717,988/80,424,009.60
  6. Step 6: Final answer
    x = 86,623,790.40

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1.5x scale

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.