Home / 93,438,123.20-140,157,184.80-55,142,878.40

Finding the Fourth Proportional to 93,438,123.20, 140,157,184.80 and 55,142,878.40

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Solution

The fourth proportional to 93,438,123.20, 140,157,184.80 and 55,142,878.40 is: 82,714,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,438,123.20 : 140,157,184.80 = 55,142,878.40 : x
  2. Step 2: Convert to fraction form
    93,438,123.20/140,157,184.80 = 55,142,878.40/x
  3. Step 3: Cross multiply
    93,438,123.20x = 140,157,184.80 × 55,142,878.40
  4. Step 4: Simplify right side
    93,438,123.20x = 7,728,670,598,312,729
  5. Step 5: Solve for x
    x = 7,728,670,598,312,729/93,438,123.20
  6. Step 6: Final answer
    x = 82,714,317.60

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1.5x scale

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.