Home / 876,931,624.76-1,210,011,816.89-500,416,305.08

Finding the Fourth Proportional to 876,931,624.76, 1,210,011,816.89 and 500,416,305.08

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Solution

The fourth proportional to 876,931,624.76, 1,210,011,816.89 and 500,416,305.08 is: 690,486,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,931,624.76 : 1,210,011,816.89 = 500,416,305.08 : x
  2. Step 2: Convert to fraction form
    876,931,624.76/1,210,011,816.89 = 500,416,305.08/x
  3. Step 3: Cross multiply
    876,931,624.76x = 1,210,011,816.89 × 500,416,305.08
  4. Step 4: Simplify right side
    876,931,624.76x = 605,509,642,506,432,256
  5. Step 5: Solve for x
    x = 605,509,642,506,432,256/876,931,624.76
  6. Step 6: Final answer
    x = 690,486,721.44

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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.