Home / 830,342,671.40-1,245,514,007.10-524,577,909.80

Finding the Fourth Proportional to 830,342,671.40, 1,245,514,007.10 and 524,577,909.80

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Solution

The fourth proportional to 830,342,671.40, 1,245,514,007.10 and 524,577,909.80 is: 786,866,864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,342,671.40 : 1,245,514,007.10 = 524,577,909.80 : x
  2. Step 2: Convert to fraction form
    830,342,671.40/1,245,514,007.10 = 524,577,909.80/x
  3. Step 3: Cross multiply
    830,342,671.40x = 1,245,514,007.10 × 524,577,909.80
  4. Step 4: Simplify right side
    830,342,671.40x = 653,369,134,471,140,352
  5. Step 5: Solve for x
    x = 653,369,134,471,140,352/830,342,671.40
  6. Step 6: Final answer
    x = 786,866,864.70

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Double scale
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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.