Home / 1,252,945,587.48-1,878,249,999.24-423,319,039.29

Finding the Fourth Proportional to 1,252,945,587.48, 1,878,249,999.24 and 423,319,039.29

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Solution

The fourth proportional to 1,252,945,587.48, 1,878,249,999.24 and 423,319,039.29 is: 634,583,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,945,587.48 : 1,878,249,999.24 = 423,319,039.29 : x
  2. Step 2: Convert to fraction form
    1,252,945,587.48/1,878,249,999.24 = 423,319,039.29/x
  3. Step 3: Cross multiply
    1,252,945,587.48x = 1,878,249,999.24 × 423,319,039.29
  4. Step 4: Simplify right side
    1,252,945,587.48x = 795,098,985,224,720,128
  5. Step 5: Solve for x
    x = 795,098,985,224,720,128/1,252,945,587.48
  6. Step 6: Final answer
    x = 634,583,810.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.