Home / 1,320,076,000.60-1,980,114,000.90-664,773,818.20

Finding the Fourth Proportional to 1,320,076,000.60, 1,980,114,000.90 and 664,773,818.20

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Solution

The fourth proportional to 1,320,076,000.60, 1,980,114,000.90 and 664,773,818.20 is: 997,160,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,076,000.60 : 1,980,114,000.90 = 664,773,818.20 : x
  2. Step 2: Convert to fraction form
    1,320,076,000.60/1,980,114,000.90 = 664,773,818.20/x
  3. Step 3: Cross multiply
    1,320,076,000.60x = 1,980,114,000.90 × 664,773,818.20
  4. Step 4: Simplify right side
    1,320,076,000.60x = 1,316,327,944,849,571,328
  5. Step 5: Solve for x
    x = 1,316,327,944,849,571,328/1,320,076,000.60
  6. Step 6: Final answer
    x = 997,160,727.30

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1.5x scale

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.