Home / 912,321,043.02-1,259,029,598.90-515,835,520.02

Finding the Fourth Proportional to 912,321,043.02, 1,259,029,598.90 and 515,835,520.02

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Solution

The fourth proportional to 912,321,043.02, 1,259,029,598.90 and 515,835,520.02 is: 711,868,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,321,043.02 : 1,259,029,598.90 = 515,835,520.02 : x
  2. Step 2: Convert to fraction form
    912,321,043.02/1,259,029,598.90 = 515,835,520.02/x
  3. Step 3: Cross multiply
    912,321,043.02x = 1,259,029,598.90 × 515,835,520.02
  4. Step 4: Simplify right side
    912,321,043.02x = 649,452,187,866,574,336
  5. Step 5: Solve for x
    x = 649,452,187,866,574,336/912,321,043.02
  6. Step 6: Final answer
    x = 711,868,034.65

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1.5x scale

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.