Home / 256,211,146.40-384,316,719.60-243,670,013.60

Finding the Fourth Proportional to 256,211,146.40, 384,316,719.60 and 243,670,013.60

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Solution

The fourth proportional to 256,211,146.40, 384,316,719.60 and 243,670,013.60 is: 365,505,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,211,146.40 : 384,316,719.60 = 243,670,013.60 : x
  2. Step 2: Convert to fraction form
    256,211,146.40/384,316,719.60 = 243,670,013.60/x
  3. Step 3: Cross multiply
    256,211,146.40x = 384,316,719.60 × 243,670,013.60
  4. Step 4: Simplify right side
    256,211,146.40x = 93,646,460,291,639,392
  5. Step 5: Solve for x
    x = 93,646,460,291,639,392/256,211,146.40
  6. Step 6: Final answer
    x = 365,505,020.40

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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.