Home / 257,308,280.32-385,646,212.96-118,946,730.08

Finding the Fourth Proportional to 257,308,280.32, 385,646,212.96 and 118,946,730.08

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Solution

The fourth proportional to 257,308,280.32, 385,646,212.96 and 118,946,730.08 is: 178,273,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,308,280.32 : 385,646,212.96 = 118,946,730.08 : x
  2. Step 2: Convert to fraction form
    257,308,280.32/385,646,212.96 = 118,946,730.08/x
  3. Step 3: Cross multiply
    257,308,280.32x = 385,646,212.96 × 118,946,730.08
  4. Step 4: Simplify right side
    257,308,280.32x = 45,871,355,999,327,312
  5. Step 5: Solve for x
    x = 45,871,355,999,327,312/257,308,280.32
  6. Step 6: Final answer
    x = 178,273,920.85

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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.