Home / 145,173,239.60-217,778,521.80-72,427,204.40

Finding the Fourth Proportional to 145,173,239.60, 217,778,521.80 and 72,427,204.40

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Solution

The fourth proportional to 145,173,239.60, 217,778,521.80 and 72,427,204.40 is: 108,650,117.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,173,239.60 : 217,778,521.80 = 72,427,204.40 : x
  2. Step 2: Convert to fraction form
    145,173,239.60/217,778,521.80 = 72,427,204.40/x
  3. Step 3: Cross multiply
    145,173,239.60x = 217,778,521.80 × 72,427,204.40
  4. Step 4: Simplify right side
    145,173,239.60x = 15,773,089,512,338,458
  5. Step 5: Solve for x
    x = 15,773,089,512,338,458/145,173,239.60
  6. Step 6: Final answer
    x = 108,650,117.31

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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.