Home / 842,547,000.30-1,263,316,615.65-434,400,312.30

Finding the Fourth Proportional to 842,547,000.30, 1,263,316,615.65 and 434,400,312.30

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Solution

The fourth proportional to 842,547,000.30, 1,263,316,615.65 and 434,400,312.30 is: 651,340,675.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,547,000.30 : 1,263,316,615.65 = 434,400,312.30 : x
  2. Step 2: Convert to fraction form
    842,547,000.30/1,263,316,615.65 = 434,400,312.30/x
  3. Step 3: Cross multiply
    842,547,000.30x = 1,263,316,615.65 × 434,400,312.30
  4. Step 4: Simplify right side
    842,547,000.30x = 548,785,132,372,139,136
  5. Step 5: Solve for x
    x = 548,785,132,372,139,136/842,547,000.30
  6. Step 6: Final answer
    x = 651,340,675.57

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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.