Home / 1,248,230,938.60-1,868,763,227.10-1,212,399,130.60

Finding the Fourth Proportional to 1,248,230,938.60, 1,868,763,227.10 and 1,212,399,130.60

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Solution

The fourth proportional to 1,248,230,938.60, 1,868,763,227.10 and 1,212,399,130.60 is: 1,815,118,374.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,230,938.60 : 1,868,763,227.10 = 1,212,399,130.60 : x
  2. Step 2: Convert to fraction form
    1,248,230,938.60/1,868,763,227.10 = 1,212,399,130.60/x
  3. Step 3: Cross multiply
    1,248,230,938.60x = 1,868,763,227.10 × 1,212,399,130.60
  4. Step 4: Simplify right side
    1,248,230,938.60x = 2,265,686,911,833,289,984
  5. Step 5: Solve for x
    x = 2,265,686,911,833,289,984/1,248,230,938.60
  6. Step 6: Final answer
    x = 1,815,118,374.15

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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.