Home / 145,575,642.90-218,363,464.35-69,048,138.90

Finding the Fourth Proportional to 145,575,642.90, 218,363,464.35 and 69,048,138.90

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Solution

The fourth proportional to 145,575,642.90, 218,363,464.35 and 69,048,138.90 is: 103,572,208.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,575,642.90 : 218,363,464.35 = 69,048,138.90 : x
  2. Step 2: Convert to fraction form
    145,575,642.90/218,363,464.35 = 69,048,138.90/x
  3. Step 3: Cross multiply
    145,575,642.90x = 218,363,464.35 × 69,048,138.90
  4. Step 4: Simplify right side
    145,575,642.90x = 15,077,590,817,124,000
  5. Step 5: Solve for x
    x = 15,077,590,817,124,000/145,575,642.90
  6. Step 6: Final answer
    x = 103,572,208.35

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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.