Home / 1,611,881,877.30-2,413,791,737.55-1,289,395,605.30

Finding the Fourth Proportional to 1,611,881,877.30, 2,413,791,737.55 and 1,289,395,605.30

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Solution

The fourth proportional to 1,611,881,877.30, 2,413,791,737.55 and 1,289,395,605.30 is: 1,930,868,820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611,881,877.30 : 2,413,791,737.55 = 1,289,395,605.30 : x
  2. Step 2: Convert to fraction form
    1,611,881,877.30/2,413,791,737.55 = 1,289,395,605.30/x
  3. Step 3: Cross multiply
    1,611,881,877.30x = 2,413,791,737.55 × 1,289,395,605.30
  4. Step 4: Simplify right side
    1,611,881,877.30x = 3,112,332,458,506,421,248
  5. Step 5: Solve for x
    x = 3,112,332,458,506,421,248/1,611,881,877.30
  6. Step 6: Final answer
    x = 1,930,868,820.07

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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.