Home / 940,325,689.69-1,297,572,319.21-553,581,736.16

Finding the Fourth Proportional to 940,325,689.69, 1,297,572,319.21 and 553,581,736.16

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Solution

The fourth proportional to 940,325,689.69, 1,297,572,319.21 and 553,581,736.16 is: 763,897,386.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,325,689.69 : 1,297,572,319.21 = 553,581,736.16 : x
  2. Step 2: Convert to fraction form
    940,325,689.69/1,297,572,319.21 = 553,581,736.16/x
  3. Step 3: Cross multiply
    940,325,689.69x = 1,297,572,319.21 × 553,581,736.16
  4. Step 4: Simplify right side
    940,325,689.69x = 718,312,337,256,159,488
  5. Step 5: Solve for x
    x = 718,312,337,256,159,488/940,325,689.69
  6. Step 6: Final answer
    x = 763,897,386.97

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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.