Home / 1,225,973,873.60-1,692,807,922.95-987,060,140

Finding the Fourth Proportional to 1,225,973,873.60, 1,692,807,922.95 and 987,060,140

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Solution

The fourth proportional to 1,225,973,873.60, 1,692,807,922.95 and 987,060,140 is: 1,362,919,113.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,973,873.60 : 1,692,807,922.95 = 987,060,140 : x
  2. Step 2: Convert to fraction form
    1,225,973,873.60/1,692,807,922.95 = 987,060,140/x
  3. Step 3: Cross multiply
    1,225,973,873.60x = 1,692,807,922.95 × 987,060,140
  4. Step 4: Simplify right side
    1,225,973,873.60x = 1,670,903,225,420,136,192
  5. Step 5: Solve for x
    x = 1,670,903,225,420,136,192/1,225,973,873.60
  6. Step 6: Final answer
    x = 1,362,919,113.86

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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.