Home / 839,810,112.40-1,260,345,024.60-430,655,654.80

Finding the Fourth Proportional to 839,810,112.40, 1,260,345,024.60 and 430,655,654.80

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Solution

The fourth proportional to 839,810,112.40, 1,260,345,024.60 and 430,655,654.80 is: 646,306,473.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810,112.40 : 1,260,345,024.60 = 430,655,654.80 : x
  2. Step 2: Convert to fraction form
    839,810,112.40/1,260,345,024.60 = 430,655,654.80/x
  3. Step 3: Cross multiply
    839,810,112.40x = 1,260,345,024.60 × 430,655,654.80
  4. Step 4: Simplify right side
    839,810,112.40x = 542,774,711,843,035,072
  5. Step 5: Solve for x
    x = 542,774,711,843,035,072/839,810,112.40
  6. Step 6: Final answer
    x = 646,306,473.13

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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.