Home / 130,865,290.01-180,604,483.66-72,138,402.31

Finding the Fourth Proportional to 130,865,290.01, 180,604,483.66 and 72,138,402.31

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Solution

The fourth proportional to 130,865,290.01, 180,604,483.66 and 72,138,402.31 is: 99,556,718.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,865,290.01 : 180,604,483.66 = 72,138,402.31 : x
  2. Step 2: Convert to fraction form
    130,865,290.01/180,604,483.66 = 72,138,402.31/x
  3. Step 3: Cross multiply
    130,865,290.01x = 180,604,483.66 × 72,138,402.31
  4. Step 4: Simplify right side
    130,865,290.01x = 13,028,518,901,030,210
  5. Step 5: Solve for x
    x = 13,028,518,901,030,210/130,865,290.01
  6. Step 6: Final answer
    x = 99,556,718.97

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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.