Home / 556,652,588.68-768,159,527.16-309,149,886.16

Finding the Fourth Proportional to 556,652,588.68, 768,159,527.16 and 309,149,886.16

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Solution

The fourth proportional to 556,652,588.68, 768,159,527.16 and 309,149,886.16 is: 426,615,154.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,652,588.68 : 768,159,527.16 = 309,149,886.16 : x
  2. Step 2: Convert to fraction form
    556,652,588.68/768,159,527.16 = 309,149,886.16/x
  3. Step 3: Cross multiply
    556,652,588.68x = 768,159,527.16 × 309,149,886.16
  4. Step 4: Simplify right side
    556,652,588.68x = 237,476,430,374,233,440
  5. Step 5: Solve for x
    x = 237,476,430,374,233,440/556,652,588.68
  6. Step 6: Final answer
    x = 426,615,154.95

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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.