Home / 1,018,796,544.40-1,405,930,779.77-572,761,895.85

Finding the Fourth Proportional to 1,018,796,544.40, 1,405,930,779.77 and 572,761,895.85

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Solution

The fourth proportional to 1,018,796,544.40, 1,405,930,779.77 and 572,761,895.85 is: 790,406,664.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,796,544.40 : 1,405,930,779.77 = 572,761,895.85 : x
  2. Step 2: Convert to fraction form
    1,018,796,544.40/1,405,930,779.77 = 572,761,895.85/x
  3. Step 3: Cross multiply
    1,018,796,544.40x = 1,405,930,779.77 × 572,761,895.85
  4. Step 4: Simplify right side
    1,018,796,544.40x = 805,263,578,854,189,440
  5. Step 5: Solve for x
    x = 805,263,578,854,189,440/1,018,796,544.40
  6. Step 6: Final answer
    x = 790,406,664.89

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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.