Home / 1,214,421,963.32-1,675,881,987.18-657,500,488.76

Finding the Fourth Proportional to 1,214,421,963.32, 1,675,881,987.18 and 657,500,488.76

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Solution

The fourth proportional to 1,214,421,963.32, 1,675,881,987.18 and 657,500,488.76 is: 907,339,671.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,421,963.32 : 1,675,881,987.18 = 657,500,488.76 : x
  2. Step 2: Convert to fraction form
    1,214,421,963.32/1,675,881,987.18 = 657,500,488.76/x
  3. Step 3: Cross multiply
    1,214,421,963.32x = 1,675,881,987.18 × 657,500,488.76
  4. Step 4: Simplify right side
    1,214,421,963.32x = 1,101,893,225,674,930,048
  5. Step 5: Solve for x
    x = 1,101,893,225,674,930,048/1,214,421,963.32
  6. Step 6: Final answer
    x = 907,339,671.84

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Double scale
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1.5x scale

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.