Home / 991,930,486.90-1,488,815,095.59-500,988,526.49

Finding the Fourth Proportional to 991,930,486.90, 1,488,815,095.59 and 500,988,526.49

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Solution

The fourth proportional to 991,930,486.90, 1,488,815,095.59 and 500,988,526.49 is: 751,947,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,930,486.90 : 1,488,815,095.59 = 500,988,526.49 : x
  2. Step 2: Convert to fraction form
    991,930,486.90/1,488,815,095.59 = 500,988,526.49/x
  3. Step 3: Cross multiply
    991,930,486.90x = 1,488,815,095.59 × 500,988,526.49
  4. Step 4: Simplify right side
    991,930,486.90x = 745,879,280,955,702,528
  5. Step 5: Solve for x
    x = 745,879,280,955,702,528/991,930,486.90
  6. Step 6: Final answer
    x = 751,947,128.16

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1.5x scale

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.