Home / 386,328,011.60-579,492,017.40-127,583,166.80

Finding the Fourth Proportional to 386,328,011.60, 579,492,017.40 and 127,583,166.80

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Solution

The fourth proportional to 386,328,011.60, 579,492,017.40 and 127,583,166.80 is: 191,374,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,328,011.60 : 579,492,017.40 = 127,583,166.80 : x
  2. Step 2: Convert to fraction form
    386,328,011.60/579,492,017.40 = 127,583,166.80/x
  3. Step 3: Cross multiply
    386,328,011.60x = 579,492,017.40 × 127,583,166.80
  4. Step 4: Simplify right side
    386,328,011.60x = 73,933,426,715,212,704
  5. Step 5: Solve for x
    x = 73,933,426,715,212,704/386,328,011.60
  6. Step 6: Final answer
    x = 191,374,750.20

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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.