Home / 435,480,648.20-653,220,972.30-432,457,339.40

Finding the Fourth Proportional to 435,480,648.20, 653,220,972.30 and 432,457,339.40

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Solution

The fourth proportional to 435,480,648.20, 653,220,972.30 and 432,457,339.40 is: 648,686,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,480,648.20 : 653,220,972.30 = 432,457,339.40 : x
  2. Step 2: Convert to fraction form
    435,480,648.20/653,220,972.30 = 432,457,339.40/x
  3. Step 3: Cross multiply
    435,480,648.20x = 653,220,972.30 × 432,457,339.40
  4. Step 4: Simplify right side
    435,480,648.20x = 282,490,203,721,139,072
  5. Step 5: Solve for x
    x = 282,490,203,721,139,072/435,480,648.20
  6. Step 6: Final answer
    x = 648,686,009.10

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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.