Home / 145,668,741.12-201,020,484.32-79,587,817.28

Finding the Fourth Proportional to 145,668,741.12, 201,020,484.32 and 79,587,817.28

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Solution

The fourth proportional to 145,668,741.12, 201,020,484.32 and 79,587,817.28 is: 109,829,888.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,668,741.12 : 201,020,484.32 = 79,587,817.28 : x
  2. Step 2: Convert to fraction form
    145,668,741.12/201,020,484.32 = 79,587,817.28/x
  3. Step 3: Cross multiply
    145,668,741.12x = 201,020,484.32 × 79,587,817.28
  4. Step 4: Simplify right side
    145,668,741.12x = 15,998,781,575,597,264
  5. Step 5: Solve for x
    x = 15,998,781,575,597,264/145,668,741.12
  6. Step 6: Final answer
    x = 109,829,888.37

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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.