Home / 679,919,644.20-1,019,879,466.30-435,031,631.40

Finding the Fourth Proportional to 679,919,644.20, 1,019,879,466.30 and 435,031,631.40

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Solution

The fourth proportional to 679,919,644.20, 1,019,879,466.30 and 435,031,631.40 is: 652,547,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,919,644.20 : 1,019,879,466.30 = 435,031,631.40 : x
  2. Step 2: Convert to fraction form
    679,919,644.20/1,019,879,466.30 = 435,031,631.40/x
  3. Step 3: Cross multiply
    679,919,644.20x = 1,019,879,466.30 × 435,031,631.40
  4. Step 4: Simplify right side
    679,919,644.20x = 443,679,828,055,850,304
  5. Step 5: Solve for x
    x = 443,679,828,055,850,304/679,919,644.20
  6. Step 6: Final answer
    x = 652,547,447.10

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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.