Home / 679,919,623.20-1,019,879,434.80-435,031,610.40

Finding the Fourth Proportional to 679,919,623.20, 1,019,879,434.80 and 435,031,610.40

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Solution

The fourth proportional to 679,919,623.20, 1,019,879,434.80 and 435,031,610.40 is: 652,547,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,919,623.20 : 1,019,879,434.80 = 435,031,610.40 : x
  2. Step 2: Convert to fraction form
    679,919,623.20/1,019,879,434.80 = 435,031,610.40/x
  3. Step 3: Cross multiply
    679,919,623.20x = 1,019,879,434.80 × 435,031,610.40
  4. Step 4: Simplify right side
    679,919,623.20x = 443,679,792,934,885,760
  5. Step 5: Solve for x
    x = 443,679,792,934,885,760/679,919,623.20
  6. Step 6: Final answer
    x = 652,547,415.60

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1.5x scale

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.