Home / 790,449,875.86-1,090,463,133.44-477,083,918.74

Finding the Fourth Proportional to 790,449,875.86, 1,090,463,133.44 and 477,083,918.74

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Solution

The fourth proportional to 790,449,875.86, 1,090,463,133.44 and 477,083,918.74 is: 658,159,917.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,449,875.86 : 1,090,463,133.44 = 477,083,918.74 : x
  2. Step 2: Convert to fraction form
    790,449,875.86/1,090,463,133.44 = 477,083,918.74/x
  3. Step 3: Cross multiply
    790,449,875.86x = 1,090,463,133.44 × 477,083,918.74
  4. Step 4: Simplify right side
    790,449,875.86x = 520,242,424,935,216,960
  5. Step 5: Solve for x
    x = 520,242,424,935,216,960/790,449,875.86
  6. Step 6: Final answer
    x = 658,159,917.32

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Double scale
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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.