Home / 870,681,209.48-1,306,583,690.04-317,937,358.72

Finding the Fourth Proportional to 870,681,209.48, 1,306,583,690.04 and 317,937,358.72

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Solution

The fourth proportional to 870,681,209.48, 1,306,583,690.04 and 317,937,358.72 is: 477,111,212.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,681,209.48 : 1,306,583,690.04 = 317,937,358.72 : x
  2. Step 2: Convert to fraction form
    870,681,209.48/1,306,583,690.04 = 317,937,358.72/x
  3. Step 3: Cross multiply
    870,681,209.48x = 1,306,583,690.04 × 317,937,358.72
  4. Step 4: Simplify right side
    870,681,209.48x = 415,411,767,357,948,800
  5. Step 5: Solve for x
    x = 415,411,767,357,948,800/870,681,209.48
  6. Step 6: Final answer
    x = 477,111,212.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.