Home / 931,842,985.92-1,285,970,228.64-514,182,174.81

Finding the Fourth Proportional to 931,842,985.92, 1,285,970,228.64 and 514,182,174.81

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Solution

The fourth proportional to 931,842,985.92, 1,285,970,228.64 and 514,182,174.81 is: 709,586,248.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,842,985.92 : 1,285,970,228.64 = 514,182,174.81 : x
  2. Step 2: Convert to fraction form
    931,842,985.92/1,285,970,228.64 = 514,182,174.81/x
  3. Step 3: Cross multiply
    931,842,985.92x = 1,285,970,228.64 × 514,182,174.81
  4. Step 4: Simplify right side
    931,842,985.92x = 661,222,968,903,028,224
  5. Step 5: Solve for x
    x = 661,222,968,903,028,224/931,842,985.92
  6. Step 6: Final answer
    x = 709,586,248.86

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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.