Home / 803,144,138.84-1,205,056,730.08-388,929,587.45

Finding the Fourth Proportional to 803,144,138.84, 1,205,056,730.08 and 388,929,587.45

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Solution

The fourth proportional to 803,144,138.84, 1,205,056,730.08 and 388,929,587.45 is: 583,559,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,144,138.84 : 1,205,056,730.08 = 388,929,587.45 : x
  2. Step 2: Convert to fraction form
    803,144,138.84/1,205,056,730.08 = 388,929,587.45/x
  3. Step 3: Cross multiply
    803,144,138.84x = 1,205,056,730.08 × 388,929,587.45
  4. Step 4: Simplify right side
    803,144,138.84x = 468,682,216,878,340,736
  5. Step 5: Solve for x
    x = 468,682,216,878,340,736/803,144,138.84
  6. Step 6: Final answer
    x = 583,559,281.84

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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.