Home / 648,076,966.02-972,117,971.09-156,789,447.42

Finding the Fourth Proportional to 648,076,966.02, 972,117,971.09 and 156,789,447.42

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Solution

The fourth proportional to 648,076,966.02, 972,117,971.09 and 156,789,447.42 is: 235,184,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,076,966.02 : 972,117,971.09 = 156,789,447.42 : x
  2. Step 2: Convert to fraction form
    648,076,966.02/972,117,971.09 = 156,789,447.42/x
  3. Step 3: Cross multiply
    648,076,966.02x = 972,117,971.09 × 156,789,447.42
  4. Step 4: Simplify right side
    648,076,966.02x = 152,417,839,513,468,672
  5. Step 5: Solve for x
    x = 152,417,839,513,468,672/648,076,966.02
  6. Step 6: Final answer
    x = 235,184,781.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.