Home / 1,172,443,664.16-1,618,000,367.10-636,617,913.21

Finding the Fourth Proportional to 1,172,443,664.16, 1,618,000,367.10 and 636,617,913.21

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Solution

The fourth proportional to 1,172,443,664.16, 1,618,000,367.10 and 636,617,913.21 is: 878,547,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,443,664.16 : 1,618,000,367.10 = 636,617,913.21 : x
  2. Step 2: Convert to fraction form
    1,172,443,664.16/1,618,000,367.10 = 636,617,913.21/x
  3. Step 3: Cross multiply
    1,172,443,664.16x = 1,618,000,367.10 × 636,617,913.21
  4. Step 4: Simplify right side
    1,172,443,664.16x = 1,030,048,017,276,215,936
  5. Step 5: Solve for x
    x = 1,030,048,017,276,215,936/1,172,443,664.16
  6. Step 6: Final answer
    x = 878,547,983.81

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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.