Home / 1,605,878,140-2,216,150,032.80-901,082,261.92

Finding the Fourth Proportional to 1,605,878,140, 2,216,150,032.80 and 901,082,261.92

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Solution

The fourth proportional to 1,605,878,140, 2,216,150,032.80 and 901,082,261.92 is: 1,243,514,955.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,878,140 : 2,216,150,032.80 = 901,082,261.92 : x
  2. Step 2: Convert to fraction form
    1,605,878,140/2,216,150,032.80 = 901,082,261.92/x
  3. Step 3: Cross multiply
    1,605,878,140x = 2,216,150,032.80 × 901,082,261.92
  4. Step 4: Simplify right side
    1,605,878,140x = 1,996,933,484,309,506,304
  5. Step 5: Solve for x
    x = 1,996,933,484,309,506,304/1,605,878,140
  6. Step 6: Final answer
    x = 1,243,514,955.82

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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.