Home / 1,348,703,998.60-2,023,111,985.10-428,554,366.60

Finding the Fourth Proportional to 1,348,703,998.60, 2,023,111,985.10 and 428,554,366.60

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Solution

The fourth proportional to 1,348,703,998.60, 2,023,111,985.10 and 428,554,366.60 is: 642,849,339.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,703,998.60 : 2,023,111,985.10 = 428,554,366.60 : x
  2. Step 2: Convert to fraction form
    1,348,703,998.60/2,023,111,985.10 = 428,554,366.60/x
  3. Step 3: Cross multiply
    1,348,703,998.60x = 2,023,111,985.10 × 428,554,366.60
  4. Step 4: Simplify right side
    1,348,703,998.60x = 867,013,475,335,399,168
  5. Step 5: Solve for x
    x = 867,013,475,335,399,168/1,348,703,998.60
  6. Step 6: Final answer
    x = 642,849,339.99

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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.