Home / 806,357,303.36-1,209,712,355.04-261,153,949.76

Finding the Fourth Proportional to 806,357,303.36, 1,209,712,355.04 and 261,153,949.76

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Solution

The fourth proportional to 806,357,303.36, 1,209,712,355.04 and 261,153,949.76 is: 391,788,055.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,357,303.36 : 1,209,712,355.04 = 261,153,949.76 : x
  2. Step 2: Convert to fraction form
    806,357,303.36/1,209,712,355.04 = 261,153,949.76/x
  3. Step 3: Cross multiply
    806,357,303.36x = 1,209,712,355.04 × 261,153,949.76
  4. Step 4: Simplify right side
    806,357,303.36x = 315,921,159,592,167,424
  5. Step 5: Solve for x
    x = 315,921,159,592,167,424/806,357,303.36
  6. Step 6: Final answer
    x = 391,788,055.09

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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.