Home / 487,640,262,543.48-672,791,742,315.04-281,799,511,853.40

Finding the Fourth Proportional to 487,640,262,543.48, 672,791,742,315.04 and 281,799,511,853.40

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Solution

The fourth proportional to 487,640,262,543.48, 672,791,742,315.04 and 281,799,511,853.40 is: 388,795,592,009.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,640,262,543.48 : 672,791,742,315.04 = 281,799,511,853.40 : x
  2. Step 2: Convert to fraction form
    487,640,262,543.48/672,791,742,315.04 = 281,799,511,853.40/x
  3. Step 3: Cross multiply
    487,640,262,543.48x = 672,791,742,315.04 × 281,799,511,853.40
  4. Step 4: Simplify right side
    487,640,262,543.48x = 189,592,384,563,376,780,476,416
  5. Step 5: Solve for x
    x = 189,592,384,563,376,780,476,416/487,640,262,543.48
  6. Step 6: Final answer
    x = 388,795,592,009.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.