Home / 390,012,000.30-585,018,000.45-160,146,053.10

Finding the Fourth Proportional to 390,012,000.30, 585,018,000.45 and 160,146,053.10

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Solution

The fourth proportional to 390,012,000.30, 585,018,000.45 and 160,146,053.10 is: 240,219,079.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,012,000.30 : 585,018,000.45 = 160,146,053.10 : x
  2. Step 2: Convert to fraction form
    390,012,000.30/585,018,000.45 = 160,146,053.10/x
  3. Step 3: Cross multiply
    390,012,000.30x = 585,018,000.45 × 160,146,053.10
  4. Step 4: Simplify right side
    390,012,000.30x = 93,688,323,764,521,536
  5. Step 5: Solve for x
    x = 93,688,323,764,521,536/390,012,000.30
  6. Step 6: Final answer
    x = 240,219,079.65

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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.