Home / 1,392,221,000,162.90-1,921,265,072,614.80-774,910,470,416.40

Finding the Fourth Proportional to 1,392,221,000,162.90, 1,921,265,072,614.80 and 774,910,470,416.40

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Solution

The fourth proportional to 1,392,221,000,162.90, 1,921,265,072,614.80 and 774,910,470,416.40 is: 1,069,376,500,598.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,221,000,162.90 : 1,921,265,072,614.80 = 774,910,470,416.40 : x
  2. Step 2: Convert to fraction form
    1,392,221,000,162.90/1,921,265,072,614.80 = 774,910,470,416.40/x
  3. Step 3: Cross multiply
    1,392,221,000,162.90x = 1,921,265,072,614.80 × 774,910,470,416.40
  4. Step 4: Simplify right side
    1,392,221,000,162.90x = 1,488,808,421,214,533,615,353,856
  5. Step 5: Solve for x
    x = 1,488,808,421,214,533,615,353,856/1,392,221,000,162.90
  6. Step 6: Final answer
    x = 1,069,376,500,598.92

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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.