Home / 1,413,107,995.84-2,119,978,132.08-430,611,429.40

Finding the Fourth Proportional to 1,413,107,995.84, 2,119,978,132.08 and 430,611,429.40

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Solution

The fourth proportional to 1,413,107,995.84, 2,119,978,132.08 and 430,611,429.40 is: 646,013,479.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413,107,995.84 : 2,119,978,132.08 = 430,611,429.40 : x
  2. Step 2: Convert to fraction form
    1,413,107,995.84/2,119,978,132.08 = 430,611,429.40/x
  3. Step 3: Cross multiply
    1,413,107,995.84x = 2,119,978,132.08 × 430,611,429.40
  4. Step 4: Simplify right side
    1,413,107,995.84x = 912,886,813,751,710,720
  5. Step 5: Solve for x
    x = 912,886,813,751,710,720/1,413,107,995.84
  6. Step 6: Final answer
    x = 646,013,479.82

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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.