Finding the Fourth Proportional to 93,771,860.79, 129,363,948.08 and 56,581,398.18
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Solution
The fourth proportional to 93,771,860.79, 129,363,948.08 and 56,581,398.18 is: 78,057,457.69
Step by Step Solution
- Step 1: Write the proportion equation
93,771,860.79 : 129,363,948.08 = 56,581,398.18 : x - Step 2: Convert to fraction form
93,771,860.79/129,363,948.08 = 56,581,398.18/x - Step 3: Cross multiply
93,771,860.79x = 129,363,948.08 × 56,581,398.18 - Step 4: Simplify right side
93,771,860.79x = 7,319,593,056,380,034 - Step 5: Solve for x
x = 7,319,593,056,380,034/93,771,860.79 - Step 6: Final answer
x = 78,057,457.69
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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.