Home / 1,392,221,000,162.40-1,921,265,072,613.80-774,910,470,415.72

Finding the Fourth Proportional to 1,392,221,000,162.40, 1,921,265,072,613.80 and 774,910,470,415.72

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Solution

The fourth proportional to 1,392,221,000,162.40, 1,921,265,072,613.80 and 774,910,470,415.72 is: 1,069,376,500,597.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,221,000,162.40 : 1,921,265,072,613.80 = 774,910,470,415.72 : x
  2. Step 2: Convert to fraction form
    1,392,221,000,162.40/1,921,265,072,613.80 = 774,910,470,415.72/x
  3. Step 3: Cross multiply
    1,392,221,000,162.40x = 1,921,265,072,613.80 × 774,910,470,415.72
  4. Step 4: Simplify right side
    1,392,221,000,162.40x = 1,488,808,421,212,452,166,828,032
  5. Step 5: Solve for x
    x = 1,488,808,421,212,452,166,828,032/1,392,221,000,162.40
  6. Step 6: Final answer
    x = 1,069,376,500,597.81

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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.