Home / 1,018,796,547.20-1,405,930,783.64-572,761,898.69

Finding the Fourth Proportional to 1,018,796,547.20, 1,405,930,783.64 and 572,761,898.69

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Solution

The fourth proportional to 1,018,796,547.20, 1,405,930,783.64 and 572,761,898.69 is: 790,406,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,796,547.20 : 1,405,930,783.64 = 572,761,898.69 : x
  2. Step 2: Convert to fraction form
    1,018,796,547.20/1,405,930,783.64 = 572,761,898.69/x
  3. Step 3: Cross multiply
    1,018,796,547.20x = 1,405,930,783.64 × 572,761,898.69
  4. Step 4: Simplify right side
    1,018,796,547.20x = 805,263,585,054,472,448
  5. Step 5: Solve for x
    x = 805,263,585,054,472,448/1,018,796,547.20
  6. Step 6: Final answer
    x = 790,406,668.80

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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.