Home / 130,848,968.32-180,572,810.16-72,113,751.52

Finding the Fourth Proportional to 130,848,968.32, 180,572,810.16 and 72,113,751.52

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Solution

The fourth proportional to 130,848,968.32, 180,572,810.16 and 72,113,751.52 is: 99,517,657.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,848,968.32 : 180,572,810.16 = 72,113,751.52 : x
  2. Step 2: Convert to fraction form
    130,848,968.32/180,572,810.16 = 72,113,751.52/x
  3. Step 3: Cross multiply
    130,848,968.32x = 180,572,810.16 × 72,113,751.52
  4. Step 4: Simplify right side
    130,848,968.32x = 13,021,782,763,146,370
  5. Step 5: Solve for x
    x = 13,021,782,763,146,370/130,848,968.32
  6. Step 6: Final answer
    x = 99,517,657.12

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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.