Home / 620,209,971.23-855,908,017.27-341,769,430.90

Finding the Fourth Proportional to 620,209,971.23, 855,908,017.27 and 341,769,430.90

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Solution

The fourth proportional to 620,209,971.23, 855,908,017.27 and 341,769,430.90 is: 471,651,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,209,971.23 : 855,908,017.27 = 341,769,430.90 : x
  2. Step 2: Convert to fraction form
    620,209,971.23/855,908,017.27 = 341,769,430.90/x
  3. Step 3: Cross multiply
    620,209,971.23x = 855,908,017.27 × 341,769,430.90
  4. Step 4: Simplify right side
    620,209,971.23x = 292,523,195,965,115,264
  5. Step 5: Solve for x
    x = 292,523,195,965,115,264/620,209,971.23
  6. Step 6: Final answer
    x = 471,651,875.23

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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.