Home / 657,698,807.48-907,508,985.30-375,312,317.72

Finding the Fourth Proportional to 657,698,807.48, 907,508,985.30 and 375,312,317.72

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Solution

The fourth proportional to 657,698,807.48, 907,508,985.30 and 375,312,317.72 is: 517,865,163.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,698,807.48 : 907,508,985.30 = 375,312,317.72 : x
  2. Step 2: Convert to fraction form
    657,698,807.48/907,508,985.30 = 375,312,317.72/x
  3. Step 3: Cross multiply
    657,698,807.48x = 907,508,985.30 × 375,312,317.72
  4. Step 4: Simplify right side
    657,698,807.48x = 340,599,300,624,668,416
  5. Step 5: Solve for x
    x = 340,599,300,624,668,416/657,698,807.48
  6. Step 6: Final answer
    x = 517,865,163.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.