Home / 747,384,501.60-1,121,076,752.40-310,539,999.60

Finding the Fourth Proportional to 747,384,501.60, 1,121,076,752.40 and 310,539,999.60

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Solution

The fourth proportional to 747,384,501.60, 1,121,076,752.40 and 310,539,999.60 is: 465,809,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,384,501.60 : 1,121,076,752.40 = 310,539,999.60 : x
  2. Step 2: Convert to fraction form
    747,384,501.60/1,121,076,752.40 = 310,539,999.60/x
  3. Step 3: Cross multiply
    747,384,501.60x = 1,121,076,752.40 × 310,539,999.60
  4. Step 4: Simplify right side
    747,384,501.60x = 348,139,174,241,865,344
  5. Step 5: Solve for x
    x = 348,139,174,241,865,344/747,384,501.60
  6. Step 6: Final answer
    x = 465,809,999.40

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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.