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Finding the Fourth Proportional to 556,652,547.84, 768,159,470.94 and 309,149,845.32

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Solution

The fourth proportional to 556,652,547.84, 768,159,470.94 and 309,149,845.32 is: 426,615,098.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,652,547.84 : 768,159,470.94 = 309,149,845.32 : x
  2. Step 2: Convert to fraction form
    556,652,547.84/768,159,470.94 = 309,149,845.32/x
  3. Step 3: Cross multiply
    556,652,547.84x = 768,159,470.94 × 309,149,845.32
  4. Step 4: Simplify right side
    556,652,547.84x = 237,476,381,622,194,048
  5. Step 5: Solve for x
    x = 237,476,381,622,194,048/556,652,547.84
  6. Step 6: Final answer
    x = 426,615,098.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.