Home / 279,248,303.82-385,365,336.50-153,803,343.72

Finding the Fourth Proportional to 279,248,303.82, 385,365,336.50 and 153,803,343.72

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Solution

The fourth proportional to 279,248,303.82, 385,365,336.50 and 153,803,343.72 is: 212,250,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,248,303.82 : 385,365,336.50 = 153,803,343.72 : x
  2. Step 2: Convert to fraction form
    279,248,303.82/385,365,336.50 = 153,803,343.72/x
  3. Step 3: Cross multiply
    279,248,303.82x = 385,365,336.50 × 153,803,343.72
  4. Step 4: Simplify right side
    279,248,303.82x = 59,270,477,307,482,960
  5. Step 5: Solve for x
    x = 59,270,477,307,482,960/279,248,303.82
  6. Step 6: Final answer
    x = 212,250,088.89

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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.