Home / 256,211,643.40-384,317,465.10-243,670,510.60

Finding the Fourth Proportional to 256,211,643.40, 384,317,465.10 and 243,670,510.60

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Solution

The fourth proportional to 256,211,643.40, 384,317,465.10 and 243,670,510.60 is: 365,505,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,211,643.40 : 384,317,465.10 = 243,670,510.60 : x
  2. Step 2: Convert to fraction form
    256,211,643.40/384,317,465.10 = 243,670,510.60/x
  3. Step 3: Cross multiply
    256,211,643.40x = 384,317,465.10 × 243,670,510.60
  4. Step 4: Simplify right side
    256,211,643.40x = 93,646,832,953,414,688
  5. Step 5: Solve for x
    x = 93,646,832,953,414,688/256,211,643.40
  6. Step 6: Final answer
    x = 365,505,765.90

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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.