Home / 145,943,056.80-201,401,438.28-79,863,570.66

Finding the Fourth Proportional to 145,943,056.80, 201,401,438.28 and 79,863,570.66

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Solution

The fourth proportional to 145,943,056.80, 201,401,438.28 and 79,863,570.66 is: 110,211,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,943,056.80 : 201,401,438.28 = 79,863,570.66 : x
  2. Step 2: Convert to fraction form
    145,943,056.80/201,401,438.28 = 79,863,570.66/x
  3. Step 3: Cross multiply
    145,943,056.80x = 201,401,438.28 × 79,863,570.66
  4. Step 4: Simplify right side
    145,943,056.80x = 16,084,637,997,100,408
  5. Step 5: Solve for x
    x = 16,084,637,997,100,408/145,943,056.80
  6. Step 6: Final answer
    x = 110,211,738.40

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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.