Home / 672,948,300.80-1,009,516,929.60-212,838,492.80

Finding the Fourth Proportional to 672,948,300.80, 1,009,516,929.60 and 212,838,492.80

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Solution

The fourth proportional to 672,948,300.80, 1,009,516,929.60 and 212,838,492.80 is: 319,287,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,948,300.80 : 1,009,516,929.60 = 212,838,492.80 : x
  2. Step 2: Convert to fraction form
    672,948,300.80/1,009,516,929.60 = 212,838,492.80/x
  3. Step 3: Cross multiply
    672,948,300.80x = 1,009,516,929.60 × 212,838,492.80
  4. Step 4: Simplify right side
    672,948,300.80x = 214,864,061,752,147,712
  5. Step 5: Solve for x
    x = 214,864,061,752,147,712/672,948,300.80
  6. Step 6: Final answer
    x = 319,287,620.60

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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.