Home / 107,986,746.40-161,994,327.60-39,877,280.80

Finding the Fourth Proportional to 107,986,746.40, 161,994,327.60 and 39,877,280.80

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Solution

The fourth proportional to 107,986,746.40, 161,994,327.60 and 39,877,280.80 is: 59,821,167.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,986,746.40 : 161,994,327.60 = 39,877,280.80 : x
  2. Step 2: Convert to fraction form
    107,986,746.40/161,994,327.60 = 39,877,280.80/x
  3. Step 3: Cross multiply
    107,986,746.40x = 161,994,327.60 × 39,877,280.80
  4. Step 4: Simplify right side
    107,986,746.40x = 6,459,893,289,712,389
  5. Step 5: Solve for x
    x = 6,459,893,289,712,389/107,986,746.40
  6. Step 6: Final answer
    x = 59,821,167.92

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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.