Home / 1,330,495,895.80-1,992,720,534.90-840,719,870.20

Finding the Fourth Proportional to 1,330,495,895.80, 1,992,720,534.90 and 840,719,870.20

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Solution

The fourth proportional to 1,330,495,895.80, 1,992,720,534.90 and 840,719,870.20 is: 1,259,169,423.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,495,895.80 : 1,992,720,534.90 = 840,719,870.20 : x
  2. Step 2: Convert to fraction form
    1,330,495,895.80/1,992,720,534.90 = 840,719,870.20/x
  3. Step 3: Cross multiply
    1,330,495,895.80x = 1,992,720,534.90 × 840,719,870.20
  4. Step 4: Simplify right side
    1,330,495,895.80x = 1,675,319,749,446,002,688
  5. Step 5: Solve for x
    x = 1,675,319,749,446,002,688/1,330,495,895.80
  6. Step 6: Final answer
    x = 1,259,169,423.02

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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.