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Finding the Fourth Proportional to 99,374,860.80, 148,973,644.80 and 38,776,492.80

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Solution

The fourth proportional to 99,374,860.80, 148,973,644.80 and 38,776,492.80 is: 58,130,149.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,374,860.80 : 148,973,644.80 = 38,776,492.80 : x
  2. Step 2: Convert to fraction form
    99,374,860.80/148,973,644.80 = 38,776,492.80/x
  3. Step 3: Cross multiply
    99,374,860.80x = 148,973,644.80 × 38,776,492.80
  4. Step 4: Simplify right side
    99,374,860.80x = 5,776,675,464,976,957
  5. Step 5: Solve for x
    x = 5,776,675,464,976,957/99,374,860.80
  6. Step 6: Final answer
    x = 58,130,149.00

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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.