Home / 130,999,121.36-180,775,595.04-72,260,500.40

Finding the Fourth Proportional to 130,999,121.36, 180,775,595.04 and 72,260,500.40

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Solution

The fourth proportional to 130,999,121.36, 180,775,595.04 and 72,260,500.40 is: 99,717,729.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,999,121.36 : 180,775,595.04 = 72,260,500.40 : x
  2. Step 2: Convert to fraction form
    130,999,121.36/180,775,595.04 = 72,260,500.40/x
  3. Step 3: Cross multiply
    130,999,121.36x = 180,775,595.04 × 72,260,500.40
  4. Step 4: Simplify right side
    130,999,121.36x = 13,062,934,957,698,158
  5. Step 5: Solve for x
    x = 13,062,934,957,698,158/130,999,121.36
  6. Step 6: Final answer
    x = 99,717,729.57

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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.