Home / 76,985,185-115,477,926.14-18,692,617.28

Finding the Fourth Proportional to 76,985,185, 115,477,926.14 and 18,692,617.28

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Solution

The fourth proportional to 76,985,185, 115,477,926.14 and 18,692,617.28 is: 28,038,962.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,985,185 : 115,477,926.14 = 18,692,617.28 : x
  2. Step 2: Convert to fraction form
    76,985,185/115,477,926.14 = 18,692,617.28/x
  3. Step 3: Cross multiply
    76,985,185x = 115,477,926.14 × 18,692,617.28
  4. Step 4: Simplify right side
    76,985,185x = 2,158,584,677,623,127.75
  5. Step 5: Solve for x
    x = 2,158,584,677,623,127.75/76,985,185
  6. Step 6: Final answer
    x = 28,038,962.01

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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.