Home / 1,137,239,994.40-1,569,633,658.32-780,495,776.80

Finding the Fourth Proportional to 1,137,239,994.40, 1,569,633,658.32 and 780,495,776.80

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Solution

The fourth proportional to 1,137,239,994.40, 1,569,633,658.32 and 780,495,776.80 is: 1,077,250,578.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,239,994.40 : 1,569,633,658.32 = 780,495,776.80 : x
  2. Step 2: Convert to fraction form
    1,137,239,994.40/1,569,633,658.32 = 780,495,776.80/x
  3. Step 3: Cross multiply
    1,137,239,994.40x = 1,569,633,658.32 × 780,495,776.80
  4. Step 4: Simplify right side
    1,137,239,994.40x = 1,225,092,441,441,894,144
  5. Step 5: Solve for x
    x = 1,225,092,441,441,894,144/1,137,239,994.40
  6. Step 6: Final answer
    x = 1,077,250,578.13

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1.5x scale

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.