Home / 12,480,514,538.40-18,720,771,807.60-4,196,648,426.40

Finding the Fourth Proportional to 12,480,514,538.40, 18,720,771,807.60 and 4,196,648,426.40

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Solution

The fourth proportional to 12,480,514,538.40, 18,720,771,807.60 and 4,196,648,426.40 is: 6,294,972,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480,514,538.40 : 18,720,771,807.60 = 4,196,648,426.40 : x
  2. Step 2: Convert to fraction form
    12,480,514,538.40/18,720,771,807.60 = 4,196,648,426.40/x
  3. Step 3: Cross multiply
    12,480,514,538.40x = 18,720,771,807.60 × 4,196,648,426.40
  4. Step 4: Simplify right side
    12,480,514,538.40x = 78,564,497,547,358,011,392
  5. Step 5: Solve for x
    x = 78,564,497,547,358,011,392/12,480,514,538.40
  6. Step 6: Final answer
    x = 6,294,972,639.60

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Double scale
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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.