Home / 1,547,439,345.23-2,135,457,200.61-842,589,639

Finding the Fourth Proportional to 1,547,439,345.23, 2,135,457,200.61 and 842,589,639

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Solution

The fourth proportional to 1,547,439,345.23, 2,135,457,200.61 and 842,589,639 is: 1,162,768,749.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547,439,345.23 : 2,135,457,200.61 = 842,589,639 : x
  2. Step 2: Convert to fraction form
    1,547,439,345.23/2,135,457,200.61 = 842,589,639/x
  3. Step 3: Cross multiply
    1,547,439,345.23x = 2,135,457,200.61 × 842,589,639
  4. Step 4: Simplify right side
    1,547,439,345.23x = 1,799,314,111,761,930,496
  5. Step 5: Solve for x
    x = 1,799,314,111,761,930,496/1,547,439,345.23
  6. Step 6: Final answer
    x = 1,162,768,749.10

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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.