Home / 287,830,457.64-397,206,026.10-155,671,464.33

Finding the Fourth Proportional to 287,830,457.64, 397,206,026.10 and 155,671,464.33

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Solution

The fourth proportional to 287,830,457.64, 397,206,026.10 and 155,671,464.33 is: 214,826,617.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,830,457.64 : 397,206,026.10 = 155,671,464.33 : x
  2. Step 2: Convert to fraction form
    287,830,457.64/397,206,026.10 = 155,671,464.33/x
  3. Step 3: Cross multiply
    287,830,457.64x = 397,206,026.10 × 155,671,464.33
  4. Step 4: Simplify right side
    287,830,457.64x = 61,833,643,723,687,208
  5. Step 5: Solve for x
    x = 61,833,643,723,687,208/287,830,457.64
  6. Step 6: Final answer
    x = 214,826,617.83

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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.