Home / 45,219,840.64-67,830,171.02-12,871,730.45

Finding the Fourth Proportional to 45,219,840.64, 67,830,171.02 and 12,871,730.45

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Solution

The fourth proportional to 45,219,840.64, 67,830,171.02 and 12,871,730.45 is: 19,307,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,219,840.64 : 67,830,171.02 = 12,871,730.45 : x
  2. Step 2: Convert to fraction form
    45,219,840.64/67,830,171.02 = 12,871,730.45/x
  3. Step 3: Cross multiply
    45,219,840.64x = 67,830,171.02 × 12,871,730.45
  4. Step 4: Simplify right side
    45,219,840.64x = 873,091,677,900,327.38
  5. Step 5: Solve for x
    x = 873,091,677,900,327.38/45,219,840.64
  6. Step 6: Final answer
    x = 19,307,712.40

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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.