Home / 130,543,728.51-180,408,714.52-106,985,115.06

Finding the Fourth Proportional to 130,543,728.51, 180,408,714.52 and 106,985,115.06

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Solution

The fourth proportional to 130,543,728.51, 180,408,714.52 and 106,985,115.06 is: 147,851,201.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,543,728.51 : 180,408,714.52 = 106,985,115.06 : x
  2. Step 2: Convert to fraction form
    130,543,728.51/180,408,714.52 = 106,985,115.06/x
  3. Step 3: Cross multiply
    130,543,728.51x = 180,408,714.52 × 106,985,115.06
  4. Step 4: Simplify right side
    130,543,728.51x = 19,301,047,080,913,792
  5. Step 5: Solve for x
    x = 19,301,047,080,913,792/130,543,728.51
  6. Step 6: Final answer
    x = 147,851,201.29

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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.