Home / 130,778,208.90-195,831,390.15-103,680,404.10

Finding the Fourth Proportional to 130,778,208.90, 195,831,390.15 and 103,680,404.10

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Solution

The fourth proportional to 130,778,208.90, 195,831,390.15 and 103,680,404.10 is: 155,254,287.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,778,208.90 : 195,831,390.15 = 103,680,404.10 : x
  2. Step 2: Convert to fraction form
    130,778,208.90/195,831,390.15 = 103,680,404.10/x
  3. Step 3: Cross multiply
    130,778,208.90x = 195,831,390.15 × 103,680,404.10
  4. Step 4: Simplify right side
    130,778,208.90x = 20,303,877,666,216,760
  5. Step 5: Solve for x
    x = 20,303,877,666,216,760/130,778,208.90
  6. Step 6: Final answer
    x = 155,254,287.68

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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.