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Finding the Fourth Proportional to 560,538,701.88, 773,528,415.89 and 309,637,693.91

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Solution

The fourth proportional to 560,538,701.88, 773,528,415.89 and 309,637,693.91 is: 427,291,735.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,538,701.88 : 773,528,415.89 = 309,637,693.91 : x
  2. Step 2: Convert to fraction form
    560,538,701.88/773,528,415.89 = 309,637,693.91/x
  3. Step 3: Cross multiply
    560,538,701.88x = 773,528,415.89 × 309,637,693.91
  4. Step 4: Simplify right side
    560,538,701.88x = 239,513,554,864,619,136
  5. Step 5: Solve for x
    x = 239,513,554,864,619,136/560,538,701.88
  6. Step 6: Final answer
    x = 427,291,735.72

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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.