Home / 663,552,726.40-995,329,089.60-636,678,870.40

Finding the Fourth Proportional to 663,552,726.40, 995,329,089.60 and 636,678,870.40

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Solution

The fourth proportional to 663,552,726.40, 995,329,089.60 and 636,678,870.40 is: 955,018,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,552,726.40 : 995,329,089.60 = 636,678,870.40 : x
  2. Step 2: Convert to fraction form
    663,552,726.40/995,329,089.60 = 636,678,870.40/x
  3. Step 3: Cross multiply
    663,552,726.40x = 995,329,089.60 × 636,678,870.40
  4. Step 4: Simplify right side
    663,552,726.40x = 633,705,000,442,788,352
  5. Step 5: Solve for x
    x = 633,705,000,442,788,352/663,552,726.40
  6. Step 6: Final answer
    x = 955,018,305.60

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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.