Home / 1,029,742,062.57-1,421,346,473.16-672,564,443.09

Finding the Fourth Proportional to 1,029,742,062.57, 1,421,346,473.16 and 672,564,443.09

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Solution

The fourth proportional to 1,029,742,062.57, 1,421,346,473.16 and 672,564,443.09 is: 928,336,458.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,742,062.57 : 1,421,346,473.16 = 672,564,443.09 : x
  2. Step 2: Convert to fraction form
    1,029,742,062.57/1,421,346,473.16 = 672,564,443.09/x
  3. Step 3: Cross multiply
    1,029,742,062.57x = 1,421,346,473.16 × 672,564,443.09
  4. Step 4: Simplify right side
    1,029,742,062.57x = 955,947,099,151,684,352
  5. Step 5: Solve for x
    x = 955,947,099,151,684,352/1,029,742,062.57
  6. Step 6: Final answer
    x = 928,336,458.13

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Double scale
Find fourth proportional to 1,029,742,063.57, 1,421,346,474.54 and 672,564,444.09
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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.