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Finding the Fourth Proportional to 661,424,928.52, 912,759,158.00 and 364,060,813

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Solution

The fourth proportional to 661,424,928.52, 912,759,158.00 and 364,060,813 is: 502,399,935.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,424,928.52 : 912,759,158.00 = 364,060,813 : x
  2. Step 2: Convert to fraction form
    661,424,928.52/912,759,158.00 = 364,060,813/x
  3. Step 3: Cross multiply
    661,424,928.52x = 912,759,158.00 × 364,060,813
  4. Step 4: Simplify right side
    661,424,928.52x = 332,299,841,132,855,168
  5. Step 5: Solve for x
    x = 332,299,841,132,855,168/661,424,928.52
  6. Step 6: Final answer
    x = 502,399,935.06

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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.