Home / 1,490,856,852.96-2,236,291,053.12-455,713,711.20

Finding the Fourth Proportional to 1,490,856,852.96, 2,236,291,053.12 and 455,713,711.20

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Solution

The fourth proportional to 1,490,856,852.96, 2,236,291,053.12 and 455,713,711.20 is: 683,572,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,856,852.96 : 2,236,291,053.12 = 455,713,711.20 : x
  2. Step 2: Convert to fraction form
    1,490,856,852.96/2,236,291,053.12 = 455,713,711.20/x
  3. Step 3: Cross multiply
    1,490,856,852.96x = 2,236,291,053.12 × 455,713,711.20
  4. Step 4: Simplify right side
    1,490,856,852.96x = 1,019,108,495,140,671,488
  5. Step 5: Solve for x
    x = 1,019,108,495,140,671,488/1,490,856,852.96
  6. Step 6: Final answer
    x = 683,572,331.65

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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.