Home / 523,890,184.51-785,835,277.61-212,924,944.67

Finding the Fourth Proportional to 523,890,184.51, 785,835,277.61 and 212,924,944.67

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Solution

The fourth proportional to 523,890,184.51, 785,835,277.61 and 212,924,944.67 is: 319,387,417.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,890,184.51 : 785,835,277.61 = 212,924,944.67 : x
  2. Step 2: Convert to fraction form
    523,890,184.51/785,835,277.61 = 212,924,944.67/x
  3. Step 3: Cross multiply
    523,890,184.51x = 785,835,277.61 × 212,924,944.67
  4. Step 4: Simplify right side
    523,890,184.51x = 167,323,933,004,843,328
  5. Step 5: Solve for x
    x = 167,323,933,004,843,328/523,890,184.51
  6. Step 6: Final answer
    x = 319,387,417.35

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Double scale
Find fourth proportional to 523,890,185.51, 785,835,279.11 and 212,924,945.67
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1.5x scale

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.