Home / 78,847,964.60-118,271,946.90-55,889,713.40

Finding the Fourth Proportional to 78,847,964.60, 118,271,946.90 and 55,889,713.40

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Solution

The fourth proportional to 78,847,964.60, 118,271,946.90 and 55,889,713.40 is: 83,834,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,847,964.60 : 118,271,946.90 = 55,889,713.40 : x
  2. Step 2: Convert to fraction form
    78,847,964.60/118,271,946.90 = 55,889,713.40/x
  3. Step 3: Cross multiply
    78,847,964.60x = 118,271,946.90 × 55,889,713.40
  4. Step 4: Simplify right side
    78,847,964.60x = 6,610,185,215,501,019
  5. Step 5: Solve for x
    x = 6,610,185,215,501,019/78,847,964.60
  6. Step 6: Final answer
    x = 83,834,570.10

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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.