Home / 648,076,963.39-972,117,967.14-156,789,444.80

Finding the Fourth Proportional to 648,076,963.39, 972,117,967.14 and 156,789,444.80

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Solution

The fourth proportional to 648,076,963.39, 972,117,967.14 and 156,789,444.80 is: 235,184,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,076,963.39 : 972,117,967.14 = 156,789,444.80 : x
  2. Step 2: Convert to fraction form
    648,076,963.39/972,117,967.14 = 156,789,444.80/x
  3. Step 3: Cross multiply
    648,076,963.39x = 972,117,967.14 × 156,789,444.80
  4. Step 4: Simplify right side
    648,076,963.39x = 152,417,836,343,684,704
  5. Step 5: Solve for x
    x = 152,417,836,343,684,704/648,076,963.39
  6. Step 6: Final answer
    x = 235,184,777.35

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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.