Home / 1,083,444,465.60-1,495,281,001.68-643,411,317.60

Finding the Fourth Proportional to 1,083,444,465.60, 1,495,281,001.68 and 643,411,317.60

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Solution

The fourth proportional to 1,083,444,465.60, 1,495,281,001.68 and 643,411,317.60 is: 887,983,417.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083,444,465.60 : 1,495,281,001.68 = 643,411,317.60 : x
  2. Step 2: Convert to fraction form
    1,083,444,465.60/1,495,281,001.68 = 643,411,317.60/x
  3. Step 3: Cross multiply
    1,083,444,465.60x = 1,495,281,001.68 × 643,411,317.60
  4. Step 4: Simplify right side
    1,083,444,465.60x = 962,080,719,473,176,704
  5. Step 5: Solve for x
    x = 962,080,719,473,176,704/1,083,444,465.60
  6. Step 6: Final answer
    x = 887,983,417.72

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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.