Finding the Fourth Proportional to 26,558,965.34, 39,822,220.31 and 12,730,155.62
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Solution
The fourth proportional to 26,558,965.34, 39,822,220.31 and 12,730,155.62 is: 19,087,455.21
Step by Step Solution
- Step 1: Write the proportion equation
26,558,965.34 : 39,822,220.31 = 12,730,155.62 : x - Step 2: Convert to fraction form
26,558,965.34/39,822,220.31 = 12,730,155.62/x - Step 3: Cross multiply
26,558,965.34x = 39,822,220.31 × 12,730,155.62 - Step 4: Simplify right side
26,558,965.34x = 506,943,061,417,462.75 - Step 5: Solve for x
x = 506,943,061,417,462.75/26,558,965.34 - Step 6: Final answer
x = 19,087,455.21
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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.