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Finding the Fourth Proportional to 658,864,718.52, 909,235,038.09 and 357,450,014.43

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Solution

The fourth proportional to 658,864,718.52, 909,235,038.09 and 357,450,014.43 is: 493,281,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,864,718.52 : 909,235,038.09 = 357,450,014.43 : x
  2. Step 2: Convert to fraction form
    658,864,718.52/909,235,038.09 = 357,450,014.43/x
  3. Step 3: Cross multiply
    658,864,718.52x = 909,235,038.09 × 357,450,014.43
  4. Step 4: Simplify right side
    658,864,718.52x = 325,006,077,485,532,096
  5. Step 5: Solve for x
    x = 325,006,077,485,532,096/658,864,718.52
  6. Step 6: Final answer
    x = 493,281,956.60

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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.