Home / 256,211,139.90-384,316,709.85-243,670,007.10

Finding the Fourth Proportional to 256,211,139.90, 384,316,709.85 and 243,670,007.10

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Solution

The fourth proportional to 256,211,139.90, 384,316,709.85 and 243,670,007.10 is: 365,505,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,211,139.90 : 384,316,709.85 = 243,670,007.10 : x
  2. Step 2: Convert to fraction form
    256,211,139.90/384,316,709.85 = 243,670,007.10/x
  3. Step 3: Cross multiply
    256,211,139.90x = 384,316,709.85 × 243,670,007.10
  4. Step 4: Simplify right side
    256,211,139.90x = 93,646,455,417,798,144
  5. Step 5: Solve for x
    x = 93,646,455,417,798,144/256,211,139.90
  6. Step 6: Final answer
    x = 365,505,010.65

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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.