Home / 839,810,171.40-1,260,345,113.10-430,655,713.80

Finding the Fourth Proportional to 839,810,171.40, 1,260,345,113.10 and 430,655,713.80

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Solution

The fourth proportional to 839,810,171.40, 1,260,345,113.10 and 430,655,713.80 is: 646,306,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810,171.40 : 1,260,345,113.10 = 430,655,713.80 : x
  2. Step 2: Convert to fraction form
    839,810,171.40/1,260,345,113.10 = 430,655,713.80/x
  3. Step 3: Cross multiply
    839,810,171.40x = 1,260,345,113.10 × 430,655,713.80
  4. Step 4: Simplify right side
    839,810,171.40x = 542,774,824,316,422,208
  5. Step 5: Solve for x
    x = 542,774,824,316,422,208/839,810,171.40
  6. Step 6: Final answer
    x = 646,306,561.65

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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.