Home / 743,756,085.40-1,115,634,128.10-698,406,453.40

Finding the Fourth Proportional to 743,756,085.40, 1,115,634,128.10 and 698,406,453.40

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Solution

The fourth proportional to 743,756,085.40, 1,115,634,128.10 and 698,406,453.40 is: 1,047,609,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,756,085.40 : 1,115,634,128.10 = 698,406,453.40 : x
  2. Step 2: Convert to fraction form
    743,756,085.40/1,115,634,128.10 = 698,406,453.40/x
  3. Step 3: Cross multiply
    743,756,085.40x = 1,115,634,128.10 × 698,406,453.40
  4. Step 4: Simplify right side
    743,756,085.40x = 779,166,074,698,322,176
  5. Step 5: Solve for x
    x = 779,166,074,698,322,176/743,756,085.40
  6. Step 6: Final answer
    x = 1,047,609,680.10

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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.