Home / 630,842,451.05-870,612,208.64-359,274,405.92

Finding the Fourth Proportional to 630,842,451.05, 870,612,208.64 and 359,274,405.92

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Solution

The fourth proportional to 630,842,451.05, 870,612,208.64 and 359,274,405.92 is: 495,826,943.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,842,451.05 : 870,612,208.64 = 359,274,405.92 : x
  2. Step 2: Convert to fraction form
    630,842,451.05/870,612,208.64 = 359,274,405.92/x
  3. Step 3: Cross multiply
    630,842,451.05x = 870,612,208.64 × 359,274,405.92
  4. Step 4: Simplify right side
    630,842,451.05x = 312,788,684,044,038,720
  5. Step 5: Solve for x
    x = 312,788,684,044,038,720/630,842,451.05
  6. Step 6: Final answer
    x = 495,826,943.04

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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.