Home / 1,372,169,345.78-1,893,592,260.68-745,636,277.22

Finding the Fourth Proportional to 1,372,169,345.78, 1,893,592,260.68 and 745,636,277.22

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Solution

The fourth proportional to 1,372,169,345.78, 1,893,592,260.68 and 745,636,277.22 is: 1,028,977,281.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,169,345.78 : 1,893,592,260.68 = 745,636,277.22 : x
  2. Step 2: Convert to fraction form
    1,372,169,345.78/1,893,592,260.68 = 745,636,277.22/x
  3. Step 3: Cross multiply
    1,372,169,345.78x = 1,893,592,260.68 × 745,636,277.22
  4. Step 4: Simplify right side
    1,372,169,345.78x = 1,411,931,083,822,310,912
  5. Step 5: Solve for x
    x = 1,411,931,083,822,310,912/1,372,169,345.78
  6. Step 6: Final answer
    x = 1,028,977,281.97

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Double scale
Find fourth proportional to 1,372,169,346.78, 1,893,592,262.06 and 745,636,278.22
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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.